Unsaturated Unpigmented Polyester Resin 5kg Kit with FREE Catalyst. We offer two types, general purpose and casting resin.

• General Purpose - An ideal resin for both hand lay-up and spray lay-up applications and may be used in contact with potable water. this product is also Lloyds approved. It has a fast cure rate and excellent glass fibre wet out with minimal drainage on vertical surfaces. It has reduced styrene emission during lamination, cure and the period before gelation thanks to a non wax additive making this a low odour resin. This resin is a medium reactivity, resilient, pre-accelerated fast curing thixotropic orthophthalic resin incorporating a colour change mechanism on initiation.
  
• Casting Resin - We supply this primarily as an unfilled casting resin with fantastic low exotherm. Add a choice of fillers to help with impact resistance, shrinkage, colour or effect such as cold casting. By using this resin instead of a pre-filled figurine resin you can craft just the resin you need! This resin is low viscosity (thats runny for the non techy people!) at 23 celsius giving fantastic air release. The data sheet does not show this use for this resin but we have some 300 customers who say this is their polyester casting resin of choice! This resin is a medium reactivity, low exotherm, low viscosity , pre-accelerated orthophthalic resin incorporating a colour change mechanism on initiation. It can be used for lamination too.

As a quick guide for coverage you will need 1000g per square metre of application area using 450gsm mat. For catalysation MEKP Catalyst is supplied with the kit for an addition ratio of 3%. This product needs only MEKP catalyst to cure this product. MEKP should be added at 1-3% by volume according to the MEKP Catalyst Addition Chart. Adding more than 4% catalyst is a waste, there will be spare chemicals left over which WILL soften your laminate!

The Gel Time at 1% MEKP and 25° Celsius is 20-25 minutes. Colder temperatures will extend this time, additional catalyst will reduce it thereby giving flexibility in working time and temperature. For casting Resin this extends by around 5 minutes.

These products are Water Bylaws Scheme & Lloyds Register of Shipping Approved products.