Reversol P-9611 is a low reactivity orthophthalic flexible resin designed for blending with other unsaturated polyester resin system, or to be used by itself to fabricate flexible FRP laminates. Reversol P-9611 is supplied as non-waxed non-promoted and non-thixotropic. This resin can be cured using Methyl Ethyl Ketone Peroxide or Acetyl Acetone Peroxide (AAP) as catalyst. For air-contact moulding, addition of wax and using slightly more catalyst are needed to achieve surface tackfree property.

Available Documents

TDS Download

Technical Informations

Application Advice/Typical Applications

(# Curing schedule was 12 hrs at 25°C followed by 12 hrs at 50°C + 3 hrs at 80oC)

Flexible FRP laminates.

Shipping and Storage

To ensure maximum stability and to maintain optimum resin properties, Reversol P-9611 should be stored in closed 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-9611 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 yellowish  
Non-Volatile 72 ± 2
Viscosity@ 25 °C - Brookfield #3/60 800 – 1,200 cps 
Geltime @ 25°C - 100g resin + 1.6g 1 % cobalt octoate + 2g MEKP 20-25 minutes 
Percent Volumetric Shrinkage 4.2
Specific Gravity 1.16  
Acid Value 28 mg KOH/g 
Tensile Strength 3.25 MPa 
Tensile Modulus 10.9 MPa 
Elongation at Break 44
Water Absorption 24 hr at 25°C 35.9 mg 
Durometer Hardness (Model type D) 50  

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