P.U. BRUSH THINNER

What it is and why choose it

P.U. Brush Thinner by Epifanes is a colorless, ester-like solvent based on 2-methoxy-1-methylethyl acetate (CAS 108-65-6). Classified as a flammable liquid (Category 3), it is designed for use in professional environments where controlled solvent performance and defined safety characteristics are required. Its very high organic solvent and VOC content (around 99.7%) make it suitable wherever an efficient polyurethane brush thinner is needed.

Main features

• High-purity solvent: Primarily composed of 2-methoxy-1-methylethyl acetate with a small amount (<0.3%) of 2-methoxypropyl acetate.
• Clear appearance: Colorless, fluid liquid with an ester-like odor for easy visual inspection.
• Controlled volatility: Boiling point around 146.4 °C (295.5 °F) and vapor pressure of 3.37 hPa at 20 °C for predictable evaporation behavior.
• Defined flammability: Flash point of 44 °C (111.2 °F) and explosion limits between 1.5 and 10.8 Vol % in air.
• Low water hazard classification: Rated as slightly hazardous for water (water hazard class 1).
• Stable under normal use: No decomposition when used according to specifications; not explosive, though explosive air/vapor mixtures can form.
• Regulatory compliance: Classified and labeled according to GHS with established transport classification (UN1263, Paint, Class 3, PG III).

Technical specifications

• Trade name: Epifanes Poly-urethane Brushthinner (P.U. Brush Thinner)
• Brand: Epifanes
• CAS number: 108-65-6 (2-methoxy-1-methylethyl acetate)
• EC number: 203-603-9
• Index number: 607-195-00-7
• Physical state: Fluid liquid
• Color: Colorless
• Odor: Ester-like
• pH: 4
• Boiling point: 146.4 °C (295.5 °F)
• Flash point: 44 °C (111.2 °F)
• Ignition temperature: 315 °C (599 °F)
• Explosion limits (air): 1.5 Vol % (lower) – 10.8 Vol % (upper)
• Vapor pressure (20 °C): 3.37 hPa (2.5 mm Hg)
• Density (20 °C): 0.97 g/cm³ (8.09465 lbs/gal)
• Solubility in water (20 °C): 220 g/l
• Dynamic viscosity (20 °C): 1.2 mPas
• Organic solvents: 99.7 %
• VOC content: 99.71 % (approximately 967.2 g/l / 8.07 lb/gal)
• GHS classification: Flam. Liq. 3 (H226); STOT SE 3 (H336)
• NFPA rating: Health 0, Fire 2, Reactivity 0
• HMIS rating: Health 0, Fire 2, Reactivity 0

Applications and use cases

Consultar ficha técnica del fabricante.

FAQ

1. Is P.U. Brush Thinner flammable?

   Yes. It is classified as a flammable liquid Category 3 with a flash point of 44 °C (111.2 °F) and forms flammable vapor/air mixtures.

2. What health hazards are associated with this product?

   It may cause drowsiness or dizziness (STOT SE 3, H336). Sensitizing effects through inhalation are possible with prolonged exposure.

3. Does it irritate skin or eyes?

   The product is reported as non-irritant to skin and non-irritating to eyes under the tested conditions.

4. What should I do in case of inhalation exposure?

   Move the person to fresh air and consult a doctor in case of complaints.

5. What is the recommended first aid if the product contacts the skin?

   Immediately remove any soiled clothing and rinse the skin with water.

6. How should eye contact be handled?

   Rinse the opened eye with running water for several minutes. Seek medical advice if symptoms persist.

7. How should spills be managed?

   Keep ignition sources away, ensure good ventilation, and absorb the liquid with sand, diatomite, acid binders, universal binders or sawdust. Dispose of the contaminated material according to local regulations.

8. Can the product be disposed of with household waste?

   No. It must not be disposed of with household garbage and must not be allowed to reach the sewage system.

9. How should the container be stored?

   Store only in the original, tightly sealed receptacle, away from heat and direct sunlight, and in a well-ventilated area.

10. Is the product hazardous to water?

    It is classified as slightly hazardous for water (water hazard class 1). Avoid release of undiluted product or large quantities into groundwater, watercourses or sewage systems.

Section 14 – Transport information

• UN number: UN1263
• UN proper shipping name (DOT): CONSUMER COMMODITY, ORM-D; Paint
• UN proper shipping name (ADR): 1263 PAINT
• UN proper shipping name (IMDG): CONSUMER COMMODITY, ORM-D; PAINT
• UN proper shipping name (IATA): PAINT
• Transport hazard class: Class 3, Flammable liquids (DOT, ADR, IMDG, IATA)
• Label: 3
• Packing group: III (DOT, ADR, IMDG, IATA)
• Marine pollutant: No
• Special precautions for user: Warning: Flammable liquids
• Kemler code (ADR): 30
• EMS number (IMDG): F-E, S-E
• Stowage category: A
• DOT quantity limitations: Passenger aircraft/rail: 60 L; Cargo aircraft only: 220 L
• ADR excepted quantities: Code E1 – max. 30 ml per inner packaging; 1000 ml per outer packaging
• IMDG limited quantities: 5 L
• IMDG excepted quantities: Code E1 – max. 30 ml per inner packaging; 1000 ml per outer packaging
• UN model regulation: UN 1263 PAINT, 3, III

Section 8 – Personal protective measures

Exposure limits

• 2-methoxy-1-methylethyl acetate (CAS 108-65-6): WEEL long-term value: 50 ppm.

General protective and hygienic measures

• Immediately remove all soiled and contaminated clothing.
• Wash hands before breaks and at the end of work.

Respiratory protection

• For brief exposure or low levels of pollution, use a suitable respiratory filter device.
• For intensive or prolonged exposure, use respiratory protective equipment independent of circulating air.
• Recommended filter type: AX.

Hand protection

• Wear protective gloves that are impermeable and resistant to the product.
• Recommended material for permanent contact: butyl rubber (BR), glove thickness 0.7 mm, breakthrough time > 480 min (per EN374).
• Suitable materials for splash protection (protection index ≥ 2, permeability time > 30 min, EN374):
• Chloroprene rubber (CR), 0.5 mm thickness.
• Nitrile rubber (NBR), 0.4 mm thickness.
• The exact breakthrough time must be obtained from and observed according to the glove manufacturer.

Eye protection

• Wear tightly sealed safety goggles.

Body protection

• Use a suitable protective suit.

*Contenido generado por IA