Reversol P-860 P is a thixotropic, isophthalic, promoted unsaturated polyester gelcoat with excellent durability and water resistance, specially developed for use in tropical climate. It is designed for boat hulls which are to remain immersed for long periods in water, but is equally suitable for other mouldings where good resistance to water and chemicals is important. It contains UV-absorber for resistant enhancement against ultra-violet / sunlight degradation. Reversol P-860 P is supplied as a nonpigmented solution in styrene monomer for brush application (For spray application, Reversol P-880 P should be used). Where Reversol P-860 P is used on laminated surface, excellent resistance to weathering can be obtained.

Technical Informations

Application Advice/Typical Applications

(# Curing schedule was 24 hrs at 20°C followed by 3 hrs at 80°C except for Deflection Temperature where schedule was 24 hrs 20°C followed by 5 hrs 80°C and 3 hrs at 120°C)

Application method : Brush Recommended catalyst level : 1.5 – 2.0% pbw Recommended film thickness (wet) : Mould making : 0.80 – 1.2 mm (0.030-0.047 inches) FRP parts : 0.50 – 1.0 mm (0.020-0.040 inches) As a guide 600-800 g/m2 wet gelcoat should furnish the required thickness

Shipping and Storage

To ensure maximum stability and maintain optimum resin properties, Reversol P-860 P should be stored in close containers maintained below 32°C and away from heat sources and sunlight. All storage should conform to local fire and building codes. Drums should be stored away from all sources of flame or combustion. Inventory should be maintained at minimum reasonable stock level on first-in-first-out basis. When properly stored, Reversol P-860 P will remain stable for 3 months from date o delivery.

Product Security/Health and Safety

Before handling, please read the Safety Data Sheet of this product for advice on safety, use and disposal.

Effluents and Pollution Control

Before handling, please read the Safety Data Sheet of this product for advice on safety, use and disposal.

For further information regarding this product please refer to:

Synthomer Limited Head Office
Phone: +44 (0)1279 436 211
FAX: +44 (0)1279 444 025


Character Value Unit
Appearance Opaque pinkish thixotropic resin, free from lumps and bits  
Viscosity@ 25°C - Brookfield, #5/1 99,500 –133,000 cps 
Viscosity@ 25°C - Brookfield, #5/10 15,000 – 19,500 cps 
Geltime @ 25°C - 100g gelcoat + 10g styrene + 2ml MEKP 14 – 19 minute 
Specific Gravity 1.12  
Viscosity@ 25°C 15 – 22 P --- ICI cone & plate 
Non-Volatile 66 ± 2
Tensile Strength 75 MPa 
Tensile Modulus 3500 MPa 
Elongation at Break 3.0
Water Absorption 24 hr at 25°C 18 mg 
Deflection Temperature (under load 1.80 MPa) 75 °C 
Barcol Hardness (Model GYZJ 934-1) 42  

Available Documents

Technical datasheet

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