Reversol P-9133 is a clear, medium viscosity, low reactivity unsaturated polyester resin designed for casting application. It is nonwaxed, therefore parts exposed to air during casting will exhibit slight residual tack. This resin is pre-accelerated for ambient temperature cure with addition of Methyl Ethyl Ketone Peroxide (MEKP) as catalyst. Geltime and curing times are sensitive and dependent on the catalyst used, as well as temperature of environment. Generally, use more catalyst on a cold / rainy environment and less on a hot day.

Available Documents

TDS Download

Technical Informations

Application Advice/Typical Applications

Clear casting for souvenirs Translucent GRP laminates /panels Filled casting e.g. cultured marble, benchtop etc.

Shipping and Storage

To ensure maximum stability and to maintain optimum resin properties, Reversol P-9133 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 and used on a first-in-first-out basis. When properly stored, Reversol P-133 will remain stable for 3 months from date of 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
Colour 5 - 50  
Non-Volatile 69 ± 2
Viscosity@ 25°C - Brookfield, #2/20 1,100 – 1,400 cps  
Geltime @ 25°C - 1% MEKP 11 – 16 minute 
Acid Value 36 mgKOH/g 
Specific Gravity 1.18  
Volumetric Shrinkage 6
Curing Time -1% MEKP 35 – 45 minute 
Barcol Hardness 35  

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