What is epoxy number?
Epoxy resins are measured according to their epoxide content, also known as epoxide number. This represents the number of epoxide equivalents found in 1kg of resin or the equivalent weight, which is the weight of resin containing 1 mole equivalent of epoxide.
What is epoxy used for?
Epoxy resins are used in the manufacture of adhesives, plastics, paints, coatings, primers and sealers, flooring and other products and materials that are used in building and construction applications.
What does epoxy do in paint?
Epoxy paints provide a tough, durable protective coating that’s easy to maintain. Because of its unique properties, epoxy paint is corrosion-resistant, resistant to chemicals and easy to clean – making it ideal for garages and warehouses, etc.
What is difference between resin and epoxy?
The main difference between both adhesive types is the drying time. Both epoxy and resin adhesives require mixing before use, but epoxy hardens much faster than resin glue. Resin glues take longer to cure, about 8-10 hours, while epoxy adhesive only takes about 6-30 minutes.
What is pure epoxy?
Pure epoxy is typically just a resin and a hardener. Pure epoxy cures at a slower rate than the other product classes (polyesters and epoxy acrylates) and, as a result, it offers less shrinkage, excellent adhesion, and high strength performance.
What is epoxy equivalent?
One equivalent epoxy weighs 150 g. One equivalent amine weighs 30 g. The mix ratio by weight is 150 g epoxy per 30 g amine. It is common in the resin industry for a mix ratio to be specified as 20 phr. The term ‘phr’ means per hundred resin or 20 parts by weight amine per 100 parts by weight of resin.
What is a Type 2 epoxy?
Type II — For use in non-load bearing applications for bonding freshly mixed concrete to hardened concrete (new concrete overlays to existing concrete). Type IV — For use in load-bearing applications for bonding hardened concrete to hardened concrete and other materials and as a binder for epoxy mortars and concretes.
Is epoxy the same as glue?
2. Super Glue is directly used and is a single compound while epoxy is used by combining resin and a hardener according to the needs of the user. 3. Super Glue sets quickly and has a very low shearing strength while epoxy sets slowly and has good shear strength.
What is epoxy and how is it made?
Epoxy is created by mixing two different compounds known as a resin and a hardener. When the resin is mixed using a specific formula, the two ingredients begin to cure. Curing is when molecular chains react chemically, forming a strong bond. When the resin and the hardener, or catalyst, are combined, it creates a strong, rigid material.
What is the coating system for this epoxy product?
The coating system shall be Epoxy.com High-Build Coating System using Epoxy.com #899 Primer/Low Modulus Binder, and two (2) coats of Epoxy.com #1 100\% Solids Epoxy Coating. This system shall be applied over a clean, well prepared substrate. See manufactures Surface Preparation Guide at www.epoxy.com/surfaceprep.aspx for additional information. 2.
What is epoxy resin used for?
Due to the resin starting as a slow moving liquid that hardens over time, it is ideal for filling for small cracks and crevices. The addition of epoxy resin gives strength to wood that has been weakened by rot or other deterioration.
What is the epoxide equivalent weight of epoxy resin?
An important criterion for epoxy resins is the epoxide group content. This is expressed as the ” epoxide equivalent weight “, which is the ratio between the molecular weight of the monomer and the number of epoxide groups. This parameter is used to calculate the mass of co-reactant…