MACRYNAL SM 2855/70BAC

MACRYNAL SM 2855/70BAC is a high-solids acrylic polyol resin built for fast-drying, two-pack polyurethane coating systems.
MACRYNAL SM 2855/70BAC delivers rapid hardness development, excellent solvent resistance, and strong chemical durability in demanding applications such as aircraft coatings, military vehicle coatings, and automotive repair clearcoats.
MACRYNAL SM 2815/70BAC's high crosslinking potential helps create tough, smooth, and long-lasting coating films with lower VOC formulation possibilities.

Synonyms: MACRYNAL SM 2855/70BAC, MACRYNAL SM 2855/70BAC, MACRYNAL SM 2855, SM 2855/70BAC, hydroxy-functional acrylic resin, acrylic polyol resin, solventborne acrylic resin, high-solids acrylic resin, acrylic binder resin, acrylic copolymer resin, polyisocyanate-crosslinkable acrylic resin, 2K polyurethane coating resin, two-pack acrylic resin, acrylic clearcoat binder, automotive refinish clearcoat resin, aircraft coating resin, military vehicle coating resin, industrial topcoat binder, high-performance coating resin, butyl acetate acrylic resin solution.

MACRYNAL SM 2855/70BAC is a hydroxy functional acrylic resin designed for crosslinking with polyisocyanates.
MACRYNAL SM 2855/70BAC is a high solid binder for the formulation of fast drying, highly crosslinked two-pack polyurethane coatings providing outstanding properties in terms of chemical and solvent resistance.

MACRYNAL SM 2855/70BAC is a hydroxy-functional acrylic resin designed for crosslinking with polyisocyanates in two-pack polyurethane coating systems.
MACRYNAL SM 2855/70BAC is a high-solids binder used to formulate fast-drying topcoats and clearcoats with very fast hardness development, low VOC potential, and high crosslinking density.
MACRYNAL SM 2855/70BAC provides outstanding chemical and solvent resistance, making it especially suitable for demanding coatings such as aircraft coatings, military vehicle coatings, car repair clearcoats, and high-performance industrial coating systems.

MACRYNAL SM 2855/70BAC is a solvent-borne acrylic polyol.
MACRYNAL SM 2855/70BAC exhibits isocyanate crosslinking, fast drying and excellent chemical & solvent resistance.

MACRYNAL SM 2855/70BAC is a fast drying hydroxy-functional acrylic resin used as a high solid binder.
MACRYNAL SM 2855/70BAC provides outstanding chemical and solvent resistance.

MACRYNAL SM 2855/70BAC is designed for crosslinking with polyisocyanates for two-pack polyurethane coatings.
MACRYNAL SM 2855/70BAC is suitable for air-drying and forced drying high-solids two-pack top- and clearcoats characterized by low VOC and a very fast hardness increase upon curing.

MACRYNAL SM 2855/70BAC is used in aircraft coatings, military vehicle coatings and car repair clearcoats.
The shelf life of the grade is 730 days.

MACRYNAL SM 2815/70BAC is a hydroxyfunctional, acrylic modified polyester.
MACRYNAL SM 2815/70BAC is cross-linkable with polyisocyanates for the production of high solids lacquers.
Coatings based on MACRYNAL SM 2815/70BAC show properties such as a very good balance of hardness and flexibility, resistance toward solvents, and very good weathering stability.

Applications of MACRYNAL SM 2855/70BAC:
MACRYNAL SM 2855/70BAC is used as a high-solids hydroxy-functional acrylic binder resin in two-pack polyurethane coating systems.
MACRYNAL SM 2815/70BAC is suitable for aircraft coatings, military vehicle coatings, automotive repair clearcoats, industrial topcoats, protective coatings, and other high-performance coating formulations.
MACRYNAL SM 2815/70BAC helps produce fast-drying films with very fast hardness development, low VOC potential, high crosslinking density, excellent chemical resistance, strong solvent resistance, and durable final coating performance.

Industrial Metal Protection:
MACRYNAL SM 2815/70BAC is suitable for composite protective and decorative coatings of general industrial metal components and equipment enclosures

Industrial Wood Coating:
Adaptable for high-performance protective and decorative coatings of industrial solid wood panels and wooden components

Metal Furniture Coating:
MACRYNAL SM 2815/70BAC is used for surface protection and high-gloss decorative topcoat formulations of metal frame furniture

Hardware Accessory Coating:
Applicable to wear-resistant and corrosion-resistant protective coatings of various industrial hardware accessories

Features of MACRYNAL SM 2855/70BAC:

High-Solid Environmental Protection:
High-solid content formula with VOC below 420g/L, meeting the trend of green coating

Precise Performance Balance:
The cured film perfectly combines hardness and flexibility, adapting to complex deformation and wear resistance requirements

Direct Metal Coating:
No primer needed, can be directly applied to metal substrates, simplifying processes and improving efficiency

Excellent Protective Performance:
Resistant to solvent erosion and corrosion, with superior outdoor weather stability and long service life

Stability and Reactivity of MACRYNAL SM 2855/70BAC:

Chemical stability:
MACRYNAL SM 2855/70BAC is stable under normal recommended handling and storage conditions.

Reactivity:
No dangerous reaction is expected when the product is handled and stored properly.

Conditions to avoid:
Heat, sparks, open flames, hot surfaces, static discharge, poor ventilation, and other ignition sources should be avoided.

Incompatible materials:
Strong oxidizing agents, strong acids, strong bases, and highly reactive chemicals should be avoided.

Hazardous decomposition products:
Thermal decomposition or fire may produce carbon oxides, irritating smoke, and solvent vapors.

Handling and Storage of MACRYNAL SM 2855/70BAC:

Handling:
MACRYNAL SM 2855/70BAC should be handled using good industrial hygiene and safety practices.

Safe handling:
Avoid breathing vapors, mist, or spray, and avoid contact with skin, eyes, and clothing.

Ventilation:
Use adequate general ventilation and local exhaust ventilation in mixing, transfer, and coating application areas.

Fire protection:
Keep away from heat, sparks, open flames, and smoking areas.

Ground and bond containers, use explosion-proof equipment, and prevent static discharge.

Storage:
Store in a cool, dry, and well-ventilated area in the original tightly closed container.

Storage protection:
Keep away from ignition sources, direct sunlight, oxidizing agents, and incompatible materials.

Storage temperature:
Store at 0–30 °C for quality protection.

First Aid Measures of MACRYNAL SM 2855/70BAC:

Inhalation:
Move the affected person to fresh air and keep them comfortable for breathing.

Skin contact:
Remove contaminated clothing and wash the affected skin with soap and plenty of water.

Eye contact:
Rinse cautiously with water for several minutes.

Remove contact lenses if present and easy to do.

Ingestion:
Rinse mouth with water.

Do not induce vomiting unless instructed by medical personnel.

Medical attention:
Seek medical advice if irritation, dizziness, breathing discomfort, headache, drowsiness, or other symptoms continue.

Firefighting Measures of MACRYNAL SM 2855/70BAC:

Suitable extinguishing media:
Use alcohol-resistant foam, dry chemical powder, carbon dioxide, or water spray.

Unsuitable extinguishing media:
Do not use a direct high-pressure water jet.

Specific hazards:
MACRYNAL SM 2855/70BAC is a solventborne acrylic resin solution and vapors may form flammable mixtures with air.

Protective equipment:
Firefighters should wear full protective clothing and self-contained breathing apparatus.

Firefighting precautions:
Cool exposed containers with water spray, control vapors, and prevent contaminated firefighting water from entering drains or waterways.

Accidental Release Measures of MACRYNAL SM 2855/70BAC:

Personal precautions:
Remove ignition sources and ventilate the spill area.

Protective equipment:
Wear suitable gloves, eye protection, protective clothing, impermeable boots, and respiratory protection if vapor or mist exposure is possible.

Environmental precautions:
Prevent further leakage if safe to do so and prevent the material from entering drains, soil, surface water, or groundwater.

Cleaning method:
Absorb the liquid with inert absorbent material such as sand, earth, or universal binder.

Disposal:
Place collected material into a suitable closed container and dispose of MACRYNAL SM 2815/70BAC according to local, regional, and national regulations.

Exposure Controls / Personal Protection of MACRYNAL SM 2855/70BAC:

Engineering controls:
Provide good general ventilation and local exhaust ventilation where vapors, mist, or spray may be generated.

Respiratory protection:
Use suitable organic vapor respiratory protection if ventilation is insufficient or exposure may occur.

Eye protection:
Wear safety glasses, chemical splash goggles, or face protection.

Skin protection:
Wear solvent-resistant protective gloves and suitable protective clothing.

Hand protection:
Nitrile gloves are generally suitable for short-term handling and splash protection.

Hygiene measures:
Wash hands after handling and before eating, drinking, smoking, or leaving the work area.

Properties of MACRYNAL SM 2855/70BAC:
Physical form: Liquid resin solution.
Resin type: Hydroxy-functional acrylic resin.
Solids content / Non-volatile content: 70%.
Hydroxyl content on solid resin: 6.0%.
Hydroxyl equivalent weight as supplied: 400.
Viscosity: 4.2 Pa·s at 23 °C.
Acid value as supplied: 5.2 mg KOH/g.
Color: 100 Hazen maximum.
Density: 1.04 kg/dm³.

Specifications of MACRYNAL SM 2855/70BAC:
Chemical Type: Hydroxy-functional acrylic-modified polyester resin
Technology Type: Solventborne resin
Solids Content: 70 ± 2 %
Solvent Composition: Butyl Acetate/Xylene mixed system
Hydroxyl Value: ca. 125-135 mg KOH/g
Acid Value: ≤ 10 mg KOH/g
Viscosity (25℃): 3500-5500 mPa·s
Color (Gardner): ≤ 2
VOC Content: Below 420 g/L
Appearance: Transparent to slightly yellow liquid