Vinyl Ester Resin Mixing Ratio

It is important to note that of the three vinyl ester resin will provide the highest corrosion resistance temperature resistance and elongation toughness.

Vinyl ester resin mixing ratio.

The difference is that the molecular chain is longer in vinyl ester resin. Gelcoat and polyester resin including boatyard use a standard catalyst or the 925 catalyst. Vinyl ester resin is considered a hybrid of polyester and epoxy meaning its handling characteristics properties and price generally fall just between the other two. One gallon of gelcoat weighs approximately 10 5 lbs.

Oz fluid ounce. Vinyl ester resin derakane momentum 411 350 epoxy vinyl ester resin is based on bisphenol a epoxy resin and provides resistance to a wide range of acids alkalis bleaches and organic compounds for use in many chemical processing industry. This filler is compatible with epoxy polyester and vinyl ester resin systems. These resins only require about 1 5 catalyst and are quite specific on the ratios especially in hot weather.

When using vinyl ester resin be sure to use it quickly after purchasing. Fast medium and slow. The molecular chain is longer in vinyl ester resin. Using drops for catalyst measurement is only an estimate.

The weight of mekp 925 is 1 125 grams per cc. Methyl ethyl ketone peroxide mekp is an organic peroxide used in the marine industry. The styrene in the polyester or vinyl ester resin will melt it. Mix ratio is 1 2 filler to resin by volume for general use 1 3 filler to resin by volume to reduce runs sagging.

The speed of hardener chosen depends. The higher percentage by weight. You can mix it 1 to 2 by weight. Vinyl ester has a shelf life of 3 months.

Mixing the correct ratio of a b is extremely important. Epoxy resin should be used. Try to store the resin in a cool dry place or refrigerate do not freeze it to extend the life of the resin. Vinyl ester resins and polyester resins are very close in molecular composition.

One gallon of polyester resin weighs approximately 9 2 lbs. Our epoxy resins come in either a 2 1 or 4 1 mixing ratio. Most problems that occur with improper cure is due to not measuring the correct ratio or not mixing completely the two components. The mix ratio is by volume.

There is a choice of three different hardeners. Catalyst chart for polyester resin gel coat and vinyl ester marine resins. Add filler after adding catalyst to resin. Resin has a short shelf life.

You will also see vinylester requires a ratio of 2 by volume as opposed to gelcoats and resin which are closer to 1 5.