PU SLOW REDUCER

What is Epifanes PU Slow Reducer and why choose it

Epifanes Poly-urethane Slow Reducer (PU Slow Reducer) is a professional-grade, solvent-based polyurethane thinner designed to adjust the application properties of compatible polyurethane coatings. Classified as a paint-related material and thinner, it helps control flow and leveling when coatings are applied by brush or roller, especially under conditions where a slower evaporation rate is desired.

The product is a clear, colorless liquid based on propane-1,2-diyl diacetate (CAS 623-84-7). It is formulated for professional use (SU22) and provides controlled reduction without adding additional volatile organic compounds (VOC content 0 g/l).

Main features

• Dedicated polyurethane slow reducer: Optimizes application of compatible Epifanes Poly-urethane coatings where slower drying and improved flow are required.
• Professional-use thinner: Intended for use in public and professional environments such as administration, education, services and crafts (sector SU22).
• Application by brush or roller: Classified under process category PROC10, for application with roller or brush.
• Clear, colorless liquid: Does not affect the color of the polyurethane system when used as directed.
• Combustible liquid: Flash point 86–95 °C; forms flammable vapor/air mixtures at elevated temperatures.
• Low water miscibility: Not or only slightly miscible with water, supporting good compatibility with solvent-based polyurethane coatings.
• Defined composition: Contains 50–100% propane-1,2-diyl diacetate as the active solvent component.
• Health and safety classified: Causes skin and serious eye irritation and may cause respiratory irritation (Skin Irrit. 2, Eye Irrit. 2, STOT SE 3).

Technical specifications

• Trade name: Epifanes Poly-urethane Slow Reducer
• Type: Slow reducer / thinner for polyurethane paint systems
• Main component: Propane-1,2-diyl diacetate (CAS 623-84-7, EC 210-817-6)
• UFI: WAA0-A08P-Y00R-2YS2
• Physical state: Liquid
• Color: Colorless
• Odor: Characteristic
• Melting/Freezing point: < -75 °C
• Initial boiling point: 190 °C
• Flash point: 86–95 °C
• Ignition temperature: 431 °C
• Explosion limits in air: 2.8–12.7 Vol %
• Vapor pressure (20 °C): < 3 hPa
• Density (20 °C): 1.06 g/cm³
• Dynamic viscosity (20 °C): 2.98 mPa·s
• Water solubility: Not or only slightly miscible
• VOC content: 0.00 % (0 g/l; 0.00 lb/gal)
• Classification (GHS/CLP): Skin Irrit. 2 (H315), Eye Irrit. 2 (H319), STOT SE 3 (H335)
• Water hazard class: Slightly hazardous for water (WGK 1 / Water hazard class 1)

Applications and use cases

• Thinner for polyurethane coatings: Used as a slow reducer for polyurethane-based paint and coating systems, classified as a paint related material and thinner (PC0, PC35).
• Professional application: Suitable for professional users in workshops, service environments and crafts (SU22) where controlled application of polyurethane coatings is required.
• Brush and roller application: Designed for systems applied by brush or roller (PROC10), where controlled flow and extended open time are important.
• Formulation in mixtures: Used in the preparation of coating mixtures (ERC2 Formulation in a mixture).

FAQ

1. What is Epifanes PU Slow Reducer made of?

   The product consists of 50–100% propane-1,2-diyl diacetate (CAS 623-84-7), a solvent classified as a combustible liquid that causes skin and eye irritation and may cause respiratory irritation.

2. Is this reducer suitable for professional use?

   Yes. The product is classified for professional use in the public domain (sector SU22), for example in administration, education, services and crafts.

3. How should PU Slow Reducer be applied?

   It is intended as a thinner for polyurethane coatings applied by roller or brush (process category PROC10). Consultar ficha técnica del fabricante.

4. Can I use this product in enclosed spaces?

   Use only outdoors or in well-ventilated areas. Adequate ventilation or local exhaust is required to avoid inhalation of vapors or aerosols.

5. Does Epifanes PU Slow Reducer contain VOCs?

   The declared VOC content is 0.00 %, corresponding to 0 g/l (0.00 lb/gal).

6. Is the product hazardous for water?

   It is classified as slightly hazardous for water (Water hazard class 1). Do not allow large quantities or undiluted product to reach groundwater, surface water or sewage systems.

7. How should waste and empty containers be disposed of?

   Do not dispose of with household waste and do not discharge into sewers. Waste and uncleaned packaging must be disposed of according to official regulations under the European waste code 08 01 11* for paint and varnish waste containing organic solvents or other dangerous substances.

8. Is PU Slow Reducer classified as flammable?

   Yes. It is a combustible liquid forming flammable vapor/air mixtures and is transported under UN1263 as a flammable liquid, paint related material.

9. Can the product cause health effects if mishandled?

   Yes. It causes skin irritation, serious eye irritation and may cause respiratory irritation. Avoid skin and eye contact and inhalation of vapors.

Section 14 – Transport information

• UN number: UN1263
• UN proper shipping name (ADR): 1263 Paint related material / VERF-VERWANTE PRODUCTEN
• UN proper shipping name (IMDG, IATA): PAINT RELATED MATERIAL
• Transport hazard class: Class 3, flammable liquids (ADR class 3 (F1); IATA class 3)
• Label: 3 (flammable liquid)
• Packing group: ADR and IATA: not assigned / void
• Marine pollutant: No
• Special precautions for user: Warning: flammable liquids. Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
• Transport in bulk according to MARPOL Annex II / IBC Code: Not applicable.
• Model regulation notation: UN 1263 Paint related material, class 3

Section 8 – Personal protective measures

Exposure controls and general protection

• Keep away from food, beverages and feed.
• Remove contaminated clothing immediately.
• Wash hands before breaks and at the end of work.
• Avoid contact with eyes and skin.
• Ensure good ventilation or local exhaust at the workplace. Prevent formation of aerosols.

Respiratory protection

• For short or low-level exposure, use an appropriate respiratory filter device.
• For intensive or prolonged exposure, use respiratory protective equipment independent of ambient air.
• Recommended filter type: AX.

Hand protection

• Wear protective gloves that are impermeable and resistant to the product.
• Specific glove material cannot be recommended based on the available tests; select material considering penetration times, diffusion rates and degradation.
• The exact breakthrough time must be obtained from the glove manufacturer and observed during use.

Eye and face protection

• Wear tightly fitting safety goggles.

Additional risk management measures

• Take measures against electrostatic charging.
• Keep away from ignition sources. Do not smoke.
• Ensure suitable extraction at processing machines and use explosion-protected electrical components where required.