FAQ Category: Sealant

A. Yes, the choice of window energy ratings sealant has a direct impact on energy efficiency. A high quality window energy ratings sealant prevents heat loss, reduces condensation, and maintains gas fill levels within the unit.

A. A dual sealed unit features both a PIB primary sealant and a secondary sealant, providing two layers of protection against gas loss and moisture ingress. This makes dual-sealed units far superior to older single sealed units.

A. Two part sealants like Polysulphide sealant, Polyurethane sealant, and Silicone sealant take approximately 2-3 hours to fully cure. During this time, they chemically bond to the glass, creating a durable and airtight seal.

A. Silicone sealant is best suited for commercial glazing, especially in buildings with high UV exposure, such as hotels and office buildings. While Silicone sealant is UV-resistant, it has higher moisture permeability than other sealants, requiring precise PIB application.

A. Hotmelt sealant is a thermoplastic material that becomes fluid when heated and solidifies upon cooling. It provides a mechanical bond to the glass, making it ideal for manufacturers needing high speed production.

A. Polysulphide sealant is a two part sealant known for its excellent adhesion and chemical bonding properties. Once cured, Polysulphide sealant creates a strong, durable barrier against moisture ingress, preventing gas loss and maintaining the unit’s thermal efficiency.

A. PIB primary sealant (Polyisobutylene) is applied around the edge of the spacer bar to create the first line of defence against moisture and gas loss. A high quality PIB primary sealant ensures that the unit remains airtight, enhancing energy efficiency and thermal performance.

A. The best type of sealant depends on the application. Polysulphide sealant is widely used due to its strong chemical bond to glass, making it highly durable. Hotmelt sealant is a cost effective thermoplastic option that provides flexibility in manufacturing.

A. Window energy ratings sealant is a specialised sealant used in double and triple glazing to create an airtight seal, improving energy efficiency and preventing gas loss. A high quality window energy ratings sealant ensures long lasting insulation, reducing condensation and heat loss.

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