Havelpol H 834-REA-30 Polyester resin

Excellent hydrolytic stability, ie resistance to water. It is characterized by good mechanical properties and excellent ability to permeate the fabric or mat. Contains at least 67% non-volatile substances. It is possible to achieve values ​​significantly lower than required by the existing or proposed legislation. This reduction in styrene emissions is achieved without any reduction interlaminar (interlayer) adhesion.

It is characterized by the following advantages

Fast lamination curing, allows to increase production speed without loss of surface properties due to shrinkage. Allows you to reduce the time normally needed for additional post tempering. Because it allows faster mold turnover, it is saving on the number of molds. It ensures a good relationship with osmosis and reduced blistering. It is characterized by good physical properties Approved by the Lloyd's Register.

Some pigments, fuels or the addition of styrene can adversely affect the spray and the final properties of the H834 resin. Therefore, before any widespread use, these should the ingredients should be assessed.

Polyester resin H 834 should have a workshop temperature of 18 - 32 ° C, at humidity 40-90% rel .. To start the curing reaction, it is sufficient to add Butanox M 50, which should be added to the resin add 1.25% or 2%. These are the conditions for ensuring the production of quality parts.

Application rules

The expected curing characteristics allow the H 834 polyester resin to be secondary curing very soon. After curing for 24 hours, it may be necessary to sand the laminate in order to secondary curing is ensured, especially if the laminate is thicker. Ensures low glass content and resin with this product. To ensure adequate crosslinking of the gelcoat, the manufacturer should use a thin one for a smooth surface layer of gelcoat. Chemical resistance studies show that the resin is not suitable for petrol tanks.