Article Summary: As an adhesive, epoxy resin can be used in automobiles, airplanes, ships, building decoration, etc. It is a material for handmade jewelry, but sometimes polyester resin is also used, which is mainly the difference between the two What you decide, through comparison, can make you know how to choose correctly. Comparison of resins: 1. Bonding strength. Gelcoat resin manufacturers introduced that epoxy resin has a high binding capacity, epoxy...
Epoxy resin as an adhesive can be used in automobiles, airplanes, ships, building decoration, etc. It is a material for handmade jewelry, but sometimes polyester resin is also used, which is mainly determined by the difference between the two Through comparison, you can understand how to choose correctly.
1. Bonding strength. Gelcoat resin manufacturers introduced that epoxy resin has a high binding capacity. The relative strength of epoxy resin can accommodate 2000 pounds per square inch, while polyester resin can be less than 500 pounds per square inch.
2. Wear resistance. Epoxy resins are more resistant to abrasion, cracking and spalling, resistant to corrosion or damage by chemical or environmental degradation, polyesters are temporary repairs, and are actually more fragile and useful, or low stress applications.
3. Cost comparison. Epoxy resins are generally more expensive. Due to their strength and preparation requirements, polyester resins are more popular in the production of crafts and jewelry due to their lower cost.
4. Moisture resistance. Epoxy resins are very resistant to moisture, and some formulas can be applied even under water. Polyester resins have little resistance to moisture and are considered to be water-permeable and easy to break.
5. Curing time. Gelcoat resin manufacturers introduce that although the curing time of epoxy resins varies, it depends on the formulation and temperature used, and generally has a faster curing time. This can be good or bad, it depends on the speed, you want to complete your project. The product can be operated by raising or lowering the temperature before use. Some epoxy resins are also formulated for use at extreme temperatures.