formulated from a neopentyl glycol / isophthalic base resin. It is formulated for brush application and can be pigmented with most of the unsaturated polyester based pigment pastes. It is resilient and heat resistant, and can be polished to a high gloss. For mould construction, Reversol P-92 should be controlled at 0.8 – 1.2mm wet film thickness. As a guide, approximately 600 – 800g/m2 of gelcoat mixture (depending on pigment) will give the required thickness when evenly applied. Stirring should be done by hand, or with a low shear mixer to avoid aeration. It should be allowed to stand to regain thixotropy before using. Methyl Ethyl Ketone Peroxide (MEKP), for example Butanox M-50, at 1-2% dosage is recommended for used in tropical condition. In order to obtain optimum life span of mould constructed using Reversol P-92, it is recommended to do post curing at 50ºC for 30 hours or at ambient condition for 1 - 2 weeks before putting the mould into use.

Available Documents

TDS Download

Technical Informations

Application Advice/Typical Applications

(# Curing schedule was 12 hours at 25ºC followed by 12hr at 50ºC 3 hours at 80ºC except for Deflection Temperature where schedule was 12 hours 25ºC followed by 12hr at 50ºC, 3 hours 80ºC and 3 hours at 120ºC)

FRP composite mould

Shipping and Storage

To ensure maximum stability and maintain optimum resin properties, Reversol P-92 should be stored in close containers maintained below 32ºC 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-92 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
Appearance Clear viscous liquid, free from bits  
Viscosity@ 25°C - Brookfield, #5/10 11,000 – 23,500 cps 
Thixotropic Index, 25°C - RVT #5, 5.8 – 6.5 1 & 10 rpm 
Geltime @ 25°C - minutes - 100g gelcoat + 1.6ml 1% cobalt octoate + 5g styrene + 2 ml MEKP) 10 – 14  
Specific Gravity 1.12  
Non-Volatile 64.5
Tensile Strength 79 MPa  
Tensile Modulus 4910 MPa 
Elongation at Break 2.8
Flexural Strength 131 MPa 
Flexural Modulus 3843 MPa 
Water Absorption 24 hr at 23°C 9.2 mg  
Deflection Temperature (under load 1.80 MPa) 83 °C 
Barcol hardness (model GYZJ 934-1) 47  

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