Silicone Liquid Optical Clear Adhesive (LOCA) is a unique type of adhesive that is specifically designed for use in optical applications, particularly those involving glass and acrylic. It is produced by BTL, a leading supplier of specialty adhesives and sealants. Compared to other adhesives, Silicone LOCA has several advantages including:
1. Low outgassing: Silicone LOCA has a low outgassing rate, meaning that it does not emit volatile organic compounds (VOCs) into the air. This is important for optical applications, as VOCs can cause optical distortion.
2. High optical clarity: Silicone LOCA provides very high optical clarity. This is important for applications requiring precision alignment, such as in the production of lenses.
3. Low shrinkage: Silicone LOCA has a low shrinkage rate, meaning that it does not distort or deform the materials it is bonding. This is important for optical applications, as any distortion to the materials can be detrimental to the finished product.
4. Fast curing: Silicone LOCA cures quickly, meaning that it can be used in a time-sensitive environment.
5. Durable: Silicone LOCA is extremely durable and can withstand high temperatures, vibration, and other harsh conditions.
6. Non-Abrasive: Silicone LOCA does not contain any abrasive particles, meaning that it can be used on delicate surfaces without causing any damage.
7. Environmentally friendly: Silicone LOCA is made with non-toxic and non-flammable ingredients, making it an environmentally-friendly choice.
In comparison to other adhesives, BTL's Silicone LOCA has many advantages that make it the ideal choice for optical applications. It is a non-abrasive, fast curing, durable, and environmentally friendly, while also providing high optical clarity and low outgassing.