Vinyl Ester Resin Hardener Ratio

Epoxy resin uses a hardener and polyester vinyl ester resins use a catalyst usually mekp methyl ethyl ketone peroxide.

Vinyl ester resin hardener ratio.

Mekp is the catalyst hardener needed to cure polyester and vinyl ester resins. Vinyl ester has a shelf life of 3 months. Vinylester is essentially a styrene modified epoxy resin. Fast medium and slow.

The styrene in the polyester or vinyl ester resin will melt it. Try to store the resin in a cool dry place or refrigerate do not freeze it to extend the life of the resin. The weight of mekp 925 is 1 125 grams per cc. Catalyze 1 5 get a pint for a.

30 drops is approximately equal to one cc. So if you need vinylester and you have a vertical surface you might consider the reichhold hydrex 100 products. Vinyl ester resin is selected due to its well known performance in marine conditions and good chemical resistance to a wide range of chemicals including sour crude up to 100 c. Hetron 922 l25 vinylesterhetron 922 l25 vinylesterashland s hetron 922 l25 is an incredibly versatile resin.

It can be used for corrosion fda applications smc repairs and even resin infusion. One gallon of polyester resin weighs approximately 9 2 lbs. Epoxy adheres to wood much better than polyester does. Our epoxy resins come in either a 2 1 or 4 1 mixing ratio.

Cc cubic centimeter. Oz fluid ounce. Vinyl ester resin cures with a tack. It can withstand repeated bending better than both polyester and epoxy resin.

The hardener catalyst for vinyl ester resin and polyester. Catalyst chart for polyester resin gel coat and vinyl ester marine resins. To cover wood a laminate using epoxy resin and 10 oz cloth will yield a much better job than 10 oz. Mekp is also used with gel coats.

Regarding costs vinyl ester resin is more expensive than polyester resin but cheaper than epoxy resin. It is meant for a room temperature cure. Cloth and polyester resin. Using drops for catalyst measurement is only an estimate.

It is a solution of methyl ethyl ketone peroxides and cumyl hydroperoxide in phlegmatizer. The hardener catalyst for vinyl ester resin is mekp methyl ethyl ketone peroxide. It adds excellent strength rigidity adhesion water and chemical resistance. It has a measured glass transition temperature t g of 110 c hence allowing the clamp to withstand up to a maximum service temperature of 80 c.

The speed of hardener chosen depends on the temperature in the. One gallon of gelcoat weighs approximately 10 5 lbs. Resin has a short shelf life. An mekp catalyst is mixed with polyester vinyl ester resin in a very low ratio just a few drops of catalyst per ounce of resin.

You can vary the cure time for polyester vinyl ester resins by reducing or increasing the. There is a choice of three different hardeners. It wets out glass very quickly and has low viscosity. When using vinyl ester resin be sure to use it quickly after purchasing.

It is the same catalyst used with polyester resins.