| HS Code | 886896 |
| Appearance | Clear to slightly hazy viscous liquid |
| Color Gardner | ≤ 6 |
| Viscosity At 25 C | ≈ 700 cP (0.7 Pa·s) |
| Density At 20 C | 1.03 g/cm³ |
| Acid Value | < 1 mg KOH/g |
| Flash Point Closed Cup | > 160°C |
| Glass Transition Temperature Tg | ≈ -20°C |
| Number Average Molecular Weight Mn | ≈ 400 g/mol |
| Refractive Index At 20 C | 1.570 |
| Solubility | Soluble in aromatic hydrocarbons, esters, and ketones; insoluble in water |
As an accredited NOVARES LA700 Liquid Hydrocarbon Resin for Coatings & Sealants factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied in 200 kg steel drums and 1000 kg IBC totes, ensuring safe handling and storage for coatings and sealants. |
| Container Loading (20′ FCL) | Load 20′ FCL container with NOVARES LA700 liquid hydrocarbon resin in drums/IBCs, securely stowed and braced for safe transport. |
| Shipping | NOVARES LA700 Liquid Hydrocarbon Resin is shipped in sealed drums or bulk containers, protected from moisture and extreme heat. Non-hazardous under normal conditions, but avoid spills. Use grounded equipment to prevent static discharge. Store upright, secure during transit, and follow standard chemical handling protocols. |
| Storage | Store NOVARES LA700 in tightly sealed original containers in a cool, dry, well-ventilated area, away from heat, sparks, open flames, and direct sunlight. Maintain moderate temperatures to preserve viscosity and prevent degradation. Avoid contact with strong oxidizers. Keep containers upright and protected from physical damage. Use within recommended shelf life. |
| Shelf Life | Shelf life is typically 24 months from manufacture date when stored sealed in original containers, away from heat and sunlight. |
Chlorinated rubber anti-corrosion systems for structural steel exposed to C4 and C5 corrosivity categories are formulated with medium-viscosity chlorinated rubber binders dissolved in aromatic solvent blends. NOVARES LA700, a liquid aromatic C9 hydrocarbon resin, is introduced during the letdown phase to raise non-volatile solids and to modify the pigment-wetting envelope without increasing the solvent demand of the millbase. In production-scale horizontal bead mills, the resin is not charged before grinding: its solvating effect on chlorinated rubber agglomerates can reduce shear transfer and extend grind time if added to the premix. The millbase containing red iron oxide, talc, and zinc phosphate is dispersed at 40–45°C in a bead mill operating at 1600–2000 rpm, and the final viscosity after letdown is adjusted to 80–90 KU at 25°C per ASTM D562. NOVARES LA700 is used at 5–15 wt% of the chlorinated rubber binder solids; at 15 wt%, König pendulum hardness measured on 25 µm dry film thickness per ISO 1522 shifts downward relative to the unmodified control, while at 5 wt% the effect on film hardness is within inter-laboratory reproducibility limits. Coating systems requiring C4 or C5 durability are specified under ISO 12944-5:2019, with surface preparation to Sa 2½ per ISO 8501-1 and scribe creep assessment according to ISO 12944-6. Application by airless spray at 180–220 bar with tip sizes of 0.015–0.019 in is standard; the slower solvent release imparted by NOVARES LA700 extends the recoat window in hot climates but requires through-dry verification per ASTM D1640 before overcoating. Terminal finished product types include swimming pool coatings, marine topside coatings, and exterior steel coatings for chemical plants. Use in potable water tank linings is not advisable unless specific national migration compliance data are obtained; published data for this specific configuration are limited.
Oxidized bitumen-based mastics for below-grade waterproofing are produced in heated sigma-blade mixers where the addition sequence of plasticizing resin has a measurable effect on batch torque and filler wetting. NOVARES LA700 is charged after bitumen dehydration at 130–140°C and before limestone filler addition; its liquid state at ambient temperature eliminates the need for a dedicated melt tank, but the addition rate is controlled below 25 kg/min in a 1000 L mixer to avoid amperage spikes. The material is incorporated at 10–25 wt% of the total bitumen/filler compound, with 15 wt% used in standard foundation mastics. At 25 wt%, the softening point per ASTM D36/D36M shifts downward by 8–12°C relative to unmodified oxidized bitumen; at 5 wt%, no significant change in cone penetration per ASTM D217 is observed. Mixing is carried out at 160–180°C jacket temperature for 45–60 min after filler addition to reach a homogeneous compound with no dry agglomerates. The binder system falls under EN 15814:2011+A2:2014 for polymer-modified bituminous thick coatings for waterproofing; formulation records also reference ASTM D36/D36M for softening point and ASTM D217 for penetration. Terminal finished products include cold-applied foundation mastics, roofing repair compounds, and below-grade waterproofing coatings. The material is not suitable for torch-applied membrane layers; it functions in cold-applied systems and solvent-thinned bituminous coatings where oxidative crosslinking is not the primary curing mechanism.
Formulators adjust alkyd high-solids enamels with liquid hydrocarbon resin when batch viscosity before thinner addition exceeds 120 KU at 25°C as measured by ASTM D562. NOVARES LA700 functions as a low-volatile, non-saponifiable modifying resin that reduces viscosity without increasing volatile organic compound demand. It is charged at 5–12 wt% of alkyd vehicle solids; the median use level in a 70% solids industrial primer is 8 wt%. At 12 wt%, through-dry at 25°C and 50% RH extends beyond 24 h per ASTM D1640, while at 5 wt% the viscosity reduction is below 8 KU and may not justify the reformulation. Pigments including titanium dioxide, zinc phosphate, and barium sulfate are dispersed in the alkyd vehicle with a high-speed cowles disperser at blade tip speed 18–22 m/s until Hegman 5–6. NOVARES LA700 is introduced after the grind is thinned but before cobalt/zirconium driers; this sequence prevents solvent shock and preserves drier activity. Because NOVARES LA700 lacks fatty acid unsaturation, it participates in auto-oxidative drying only as a non-reactive plasticizer; high resin loads therefore require drier compensation and are validated by through-dry and salt spray testing under ASTM B117 rather than by viscosity adjustment alone. The coating system is specified under ISO 12944-5:2019 for atmospheric environments, and adhesion is checked per ASTM D3359 after 240 h salt spray. Terminal finished products include structural steel frames, agricultural machinery, and storage tank exteriors. The resin is not used in waterborne alkyd systems without an emulsifier; phase separation occurs rapidly in the absence of a nonionic stabilizer.
Insulating glass edge seal compounds based on butyl rubber or polyisobutylene require balance among low moisture vapor transmission, adhesion to aluminum spacer bars, and retained elastomeric recovery. NOVARES LA700 is introduced at 15–40 phr per 100 phr butyl polymer in internal mixer operations; 25 phr is used in standard two-stage mixing for dual-seal insulating glass units. The resin acts as a plasticizing tackifier; at 40 phr, tensile strength per ISO 37 decreases by 25–35%, and compression set per ISO 815-1 increases relative to a 15 phr control. At 15 phr, the compound tack to anodized aluminum is insufficient for automated spacer application at line speeds above 12 m/min. Compounding is conducted in a 75 L internal mixer with intermeshing rotors; butyl is pre-masticated at 110°C, then NOVARES LA700 and carbon black/calcium carbonate are added under ram pressure 0.4–0.6 MPa, and the batch is dumped at 130°C. A secondary straining step through 120 mesh screens removes undispersed resin-rich agglomerates. Application through hot-melt gear pumps at 120–140°C is monitored by viscosity per ASTM D3236; line operators control output by pump speed rather than by temperature adjustment above 150°C, which risks thermal degradation. Compliance references include EN 1279-4:2018 for insulating glass edge seal attributes, ASTM E2190-19 for sealed insulating glass unit durability, and moisture vapor transmission measurement per ASTM E96/E96M. Terminal finished products are dual-seal insulating glass units, butyl edge tapes for automotive glazing, and spacer bar sealants for high-humidity service. The edge seal compound is not combined with low-molecular-weight polybutene plasticizers above 5 phr; migration to the spacer interface can reduce adhesive peel strength below specification.
Solventborne alkyd and chlorinated rubber road marking binders used in city and airport markings are formulated with liquid hydrocarbon resins to shorten no-pick-up time and to improve adhesion to asphalt and concrete substrates in cold conditions. NOVARES LA700 is added at 10–20 wt% of total binder; a standard formulation uses 12 wt%. At 20 wt%, no-pick-up time measured at 23°C and 50% RH extends beyond 15 min, while at 10 wt% adhesion to wet asphalt can drop below specification limits in winter trials. Production is conducted in high-speed dispersers: titanium dioxide and calcium carbonate are dispersed in the alkyd/chlorinated rubber binder to Hegman 4–5 before NOVARES LA700 is added during letdown; premix glass beads at 10–20 wt% are introduced only after the final viscosity is confirmed to prevent bead settling and pump cavitation. Airless spray application with 0.021–0.027 in tips is used for solventborne road marking paint; line speed and wet film thickness are matched to the no-pick-up window. Compliance is assessed under EN 1436:2018 for road marking performance and EN 1871:2020 for material properties; formulation records also reference ASTM D562 for viscosity at 25°C. Terminal finished products include city road lane lines, airport apron markings, and pedestrian crossing coatings. High aromatic content requires storage in epoxy-lined or stainless steel tanks; unlined carbon steel can promote color drift over extended dwell times. The resin is not used in waterborne road marking paints without emulsification; phase inversion is not spontaneous.
Oil-based glazing compounds formulated with linseed oil, calcium carbonate, and bentonite are processed in double-arm kneaders where liquid hydrocarbon resin alters plastic flow and skinning behavior. NOVARES LA700 is added at 5–15 wt% of total compound mass; a 10 wt% use level is standard for metal sash glazing putty. At 10 wt%, cone penetration per ASTM D217 is reduced from 18 mm to 12 mm in a standard batch, indicating a firmer, less oily putty; above 15 wt%, the compound becomes too firm for hand application below 15°C. The resin is pre-blended with linseed oil at a 1:3 ratio before addition to the kneader to avoid resin-rich lumps; mixing is performed at 30–40°C jacket temperature for 45–60 min. The discharged compound is passed through a three-roll mill at 25–30 µm gap to eliminate undispersed bentonite and pigment clusters, then extruded into cartridges or bulk sleeves. The material is specified under ASTM C570-21 for oil- and resin-based caulking compound for building construction; skin time, slump, and adhesion are checked according to that standard. Terminal finished products include window glazing putty, metal sash glazing compound, and linseed oil caulking. The material is not a substitute for acrylic latex caulk on damp or alkaline substrates; the uncured oil-based film will saponify at high pH and lose adhesion.
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NOVARES LA700 is a low-viscosity liquid aromatic hydrocarbon resin supplied for solventborne, high-solids, and solvent-free coatings and sealant systems. The product is positioned within the C9 aromatic hydrocarbon resin family and is separated from solid C9 grades by the absence of a ring-and-ball softening point; the controlling consistency parameter is dynamic viscosity measured under ISO 3219 or ASTM D2196 at 25 °C. The designation LA700 places the product in the mid-range viscosity band of the LA series, but the certificate of analysis for the specific production lot remains the controlling specification document.
The resin functions as a low-volatile, non-phthalate modifying resin that can reduce solvent demand, lower formulation viscosity, and alter wetting on metal and mineral substrates. Industrial coatings and sealant compounding records commonly use addition levels between 5 and 20 parts per hundred resin solids; the exact dosage is not transferable across binder chemistries unless supported by tensile, hardness, adhesion, and migration data under the relevant ISO or ASTM method. The paragraphs that follow describe class-level behaviour, processing boundaries, and comparative differences relevant to product selection.
| Parameter | Reference method | Functional consequence in coatings and sealants | Generic class range |
|---|---|---|---|
| Viscosity at 25 °C | ISO 3219, ASTM D2196 | Controls pump transfer, incorporation into high-solids binder systems, and flow | 500–1000 mPa·s |
| Gardner colour | ASTM D1544, ISO 4630-1 | Affects white-enamel yellowing and tint acceptance | 8–12 |
| Acid number | ASTM D974, ISO 2114 | Influences interaction with basic pigments and alkoxysilane cure systems | <1 mg KOH/g |
| Volatile content | ASTM D2369, ISO 3251 | Determines VOC contribution under high-solids regulations | <0.5 wt% after 3 h at 105 °C |
| Specific gravity at 25 °C | ASTM D1475, ISO 2811-1 | Used for volume-to-mass correction in batch records | 1.02–1.08 |
The tabulated values are representative of liquid aromatic hydrocarbon resin class behaviour, not guaranteed product specifications for any individual batch of NOVARES LA700.
In construction sealants based on silyl-terminated polyether or polyurethane binders, low-temperature flow and substrate wetting are governed by the resin’s viscosity, solubility parameter, and polarity. Rotational viscometry at 23 °C and 0.5 s⁻¹ on a controlled-stress rheometer typically shows that replacement of a low-molecular-weight process oil with an aromatic liquid resin increases low-shear viscosity, while capillary or pressure extrusion through a 3 mm nozzle at 60 s⁻¹ retains acceptable high-shear flow. Slump is classified under ISO 7390; tensile adhesion on concrete and aluminium is measured under ISO 8339.
On a controlled-stress rheometer fitted with a 25 mm parallel-plate geometry and 1 mm gap, a sealant containing an aromatic liquid resin typically displays a power-law shear-thinning index between 0.2 and 0.6. The index governs sag resistance after tooling. Open time can be assessed by controlled-temperature cone-and-plate viscosity under ISO 3219 at 5 °C and 25 °C; a viscosity increase factor of 3 to 5 over that temperature interval is common for liquid aromatic resins and must be separated from the rheology modifier response in cold-weather application grades.
The processing conflict occurs at higher addition levels. Aromatic liquid resin can reduce cohesive strength and increase surface tack to the point of dirt pick-up. In moisture-cure sealants, addition above approximately 20 wt% of total binder has been associated with Shore A hardness below 30 after 7 d at 23 °C/50 % RH, measured under ISO 868, though published data for LA700-specific batches in this configuration is limited. Tensile strength at break and elongation are recorded under ISO 37 or ASTM D638-14; a non-reactive liquid resin generally reduces tensile strength while increasing extension, but the exact balance is substrate- and filler-dependent.
Adhesion to porous substrates is influenced by the resin’s ability to wet dust-free concrete and mortar surfaces. Surface wetting is quantified by contact angle measurement under ASTM D7334; a lower contact angle after resin addition indicates improved penetration into surface capillaries. However, a contact angle reduction is not sufficient to ensure long-term adhesion; alkaline hydrolysis resistance in concrete-bonded joints is evaluated after water immersion at 23 °C for 7 d under ISO 9142 or by adhesion retention testing in ISO 8339.
In reformulation from a medium-solids alkyd to a high-solids alkyd, substitution of 5–10 wt% of aromatic solvent with a liquid aromatic hydrocarbon resin can maintain spray viscosity while lowering calculated VOC. Spray viscosity is determined by cone-and-plate viscometry at 10,000 s⁻¹ under ISO 2884-1; VOC is calculated from volatile content under ISO 3251 or ASTM D2369 and solvent density. Drying is characterised with a Beck-Koller recorder under ASTM D5895, and hardness development is measured by König pendulum damping under ISO 1522.
The main process conflict is the depression of through-dry relative to a volatile solvent-based reference. The liquid resin remains in the film, so dust-free time can extend beyond 4 h at 23 °C when addition exceeds 15 wt% on total resin solids in a short-oil alkyd; however, batch-specific data for NOVARES LA700 in this exact composition is limited. Gloss is measured at 20° under ISO 2813. Compared with C5 aliphatic liquid hydrocarbon resins, the aromatic character of LA700-type products increases refractive index, typically from about 1.45–1.50 to 1.54–1.60. This can raise specular gloss in high-gloss alkyds while simultaneously increasing yellowing potential.
In comparative white enamel formulations, C5 aliphatic liquid resin typically shows Gardner colour below 2 under ASTM D1544, whereas aromatic grades may contribute to a colour elevation of several Gardner units. QUV-A exposure under ASTM G154 can produce ΔE*ab values above 2 after 500 h in white enamel, whereas aliphatic resin-modified controls may remain below 1. Product-specific QUV data for LA700 are not available in this document; the class difference is nevertheless relevant to outdoor topcoat selection.
Compatibility in polymer matrices is determined primarily by solubility parameter matching. Liquid aromatic hydrocarbon resins of the LA700 class exhibit Hildebrand solubility parameters generally in the range 8.5–9.5 (cal/cm³)¹/₂, between aliphatic C5 resins and polar rosin esters. In thermoplastic acrylic coatings based on methyl methacrylate-rich copolymers, phase separation can increase haze under ASTM D1003 at loadings above 10 wt%; styrene-acrylic copolymers generally tolerate higher loadings because of aromatic segment interactions. Published data for specific LA700 binary blends with polar acrylics is limited. The following comparative data are class-level values, not guaranteed product specifications.
| Property / behaviour | Method | Aromatic liquid resin, LA700 class | C5 aliphatic liquid resin | Rosin ester liquid resin |
|---|---|---|---|---|
| Gardner colour | ASTM D1544 | 8–12 | <2 | 3–7 |
| Hildebrand solubility parameter | calculated from Hansen sphere | 8.5–9.5 (cal/cm³)¹/₂ | 7.7–8.3 (cal/cm³)¹/₂ | 8.6–9.4 (cal/cm³)¹/₂ |
| Compatibility with short-oil alkyd | haze and viscosity stability under ISO 3219 | high | limited | high |
| Yellowing tendency in white enamel | ASTM G154 QUV-A exposure | moderate to high | low | moderate |
| Water absorption after 24 h | ISO 62 | 0.1–0.5 wt% | <0.1 wt% | 0.3–0.8 wt% |
Liquid aromatic hydrocarbon resins in this class have weight-average molecular weights typically below 1,000 g/mol; size-exclusion chromatography under ISO 13885 is used to measure oligomer distribution. The low-molecular-weight fraction can migrate toward the sealant-substrate interface and alter adhesion retention. Peel adhesion is determined under ASTM C794 on anodised aluminium and glass; tensile adhesion strength is measured under ISO 8339 after thermal ageing at 70 °C for 7 d. In aluminium lap-shear joints, class data indicate that replacing a solid C9 resin with an aromatic liquid resin can reduce interfacial failure temperature by 5–10 °C, but published data for LA700-specific batches in this configuration is limited.
For solvent-free sealant formulations, water-vapour transmission is assessed under ASTM E96 procedure B; aromatic liquid resins generally produce lower transmission than phthalate plasticizers at equivalent loading because of lower free volume and higher glass transition effect. Film thickness and filler loading strongly control the result, so the measured value must be tied to a specific formulation rather than the resin alone.
In food-contact sealants, migration limits must be checked under the applicable regulatory framework. Compliance with 21 CFR 175.300 or Regulation (EU) No 10/2011 is not automatic for a resin class and requires end-use migration testing with the specific formulation. The absence of restricted polycyclic aromatic hydrocarbons should be confirmed under REACH Annex XVII and supplier documentation. For industrial sealants, cure and adhesion are more critical than food-contact migration compliance.
In moisture-cure silyl-terminated polyether sealants, the resin modifies yield stress and extrusion behaviour. Parallel-plate oscillatory rheometry from 0.1 to 100 s⁻¹ at 23 °C separates low-shear storage modulus, which controls slump, from high-shear viscosity, which controls gun-applied extrusion. Batch records from production-scale planetary mixers indicate that substitution of 10–15 parts by weight of hydrocarbon process oil with an aromatic liquid resin can increase low-shear modulus while maintaining extrusion rate through a 3 mm nozzle, although the effect depends on filler content and silane adhesion promoter composition. Shore A hardness is recorded after 7 d moisture cure at 23 °C/50 % RH under ISO 868; tensile adhesion is measured under ISO 8339.
Residual acid or peroxide species in the resin can influence alkoxysilane condensation. Acid number should be monitored under ASTM D974 or ISO 2114; peroxide value can be assessed by titration per ASTM E298. If the acid number exceeds the certificate-of-analysis limit, moisture-cure sealants may show premature viscosity rise during storage, evaluated by ISO 3219 at 25 °C after 30 d at 40 °C. Acceptable storage stability in sealants is commonly defined as viscosity increase below 10% over the specified storage period. Avoid combination with amine-based additives unless cure stability is confirmed by sealed-tube ageing tests.
On production-scale side-entry dissolvers and planetary mixers, the resin is added after pigment dispersion. Prolonged heating above 40 °C should be avoided to limit colour drift; batch-to-batch viscosity variation is compensated by adjustment of the rheology modifier and solvent fraction, not by uncontrolled heating. When dosing from heated bulk storage, transfer lines should be maintained at 20–30 °C and protected from moisture ingress; moisture levels above 0.1 wt% can destabilise silane-cure sealants. These processing limits are general to liquid aromatic resins; published data specific to LA700 on a given production line should be collected during initial scale-up.
