Curtain Wall Sealants

Curtain wall work uses structural glazing silicones and weather seals. The manufacturer's JL990 structural neutral silicone sealant is described for curtain wall structural glazing, and the JL998 structural silicone sealant is published in the same family. Anything beyond the quoted descriptions — including project-specific approvals, movement ratings and system compatibility — must be confirmed by inquiry for your project.

Products in this range

The products below are described in the manufacturer's own words. Specifications beyond what is quoted here are not stated on this site; confirm any technical requirement for your application before ordering.

Questions to confirm for your order

• Confirm the exact product code, colour and pack size for your order.
• Confirm the minimum order quantity and lead time for your quantity.
• Confirm which documents you need with the shipment. Certificates available upon request.
• Confirm suitability for your substrate and application in writing before ordering.

Frequently asked questions

Which product code should I choose?

For curtain wall sealants, the code matters more than the generic type: colour, pack size and published description differ by code. Compare the quoted descriptions on this page, then confirm your shortlist by inquiry.

What colours and pack sizes are available?

Colours and pack sizes are stated per product code in the manufacturer's listings where published. Where they are not stated, ask for them in your inquiry before ordering.

Can I get a sample before a bulk order?

Ask about samples in your inquiry, together with the product code, colour and quantity you need. Samples let you check colour, adhesion and handling on your own substrates before committing to volume.

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