How much catalyst do I need for resin?

Generally speaking, for Polyester Resins, the mixing ratio is 2% i.e. 20ml for every 1kg of Resin in working conditions at room temperature. For the Water Clear Casting Polyester Resin, this drops to 1.5% or 15ml for every 1kg.

What is laminating epoxy?

Our Laminating Epoxy Resin and Hardener System is a high quality resin which is used in laminating for fiberglass, carbon fiber, kevlar, or many other types of composite reinforcement. The syrup-like consistency will generate fast wet-out and easy application of any reinforcement.

What is the difference between epoxy and fiberglass resin?

The key difference between epoxy and fiberglass resin is that epoxy resins are made mainly from the reaction between epichlorohydrin and bisphenol A, whereas fiberglass resin is made from the combination of alcohols and organic acids.

How strong is fiberglass epoxy?

While the exact number for the specific strength of fiberglass varies depending on the specific composite, a good average is about 1,307 kN m/kg. For comparison, stainless steel’s specific strength is 63.1, and titanium is 260.

What happens if you put too much catalyst in resin?

You will need to scrape off the resin and start over. Adding more catalyst won’t work.

Is catalyst the same as hardener?

Hardener and catalyst are basically the same product. In general a catalyst hardener causes a chemical reaction which results in “setting” of the epoxy resin.

Is epoxy resin waterproof?

The resulting hardened epoxy is incredibly waterproof, a detail that didn’t escape the attention of the pioneers of this material, and epoxy resins are used broadly as coatings and as waterproofing in many industries, including home construction.

What is a good substitute for epoxy resin?

Hard plaster and concrete are excellent epoxy resin alternatives, and their use is not limited to small surfaces only. Unlike epoxy resin, concrete and plaster can be easily applied to large surfaces as well. Other great alternatives to epoxy resin include slush latex, metal, plastic, and alabaster.

What is stronger fiberglass or epoxy?

Polyester resin is excellent for fiberglass lay-up — building a boat, for example. As a general rule, the tensile strength of a polyester bond will be around 20 percent weaker than the same bond made with epoxy. That makes epoxy resin usually the best choice for fiberglass repair work. There are a couple of exceptions.

Which is stronger epoxy or fiberglass?

Epoxy resin can be as much as 35% stronger than the resin used on a fiberglass board. An epoxy surfboard has better buoyancy than a fiberglass board, making it easier to paddle, float, and ultimately catch waves, making them a great choice for those surfers just starting out. Lighter.

What’s stronger fiberglass or epoxy?