Sourced and supplied across Saudi Arabia
The cure chemistry decides where a silicone can be used, and getting it wrong produces failures that appear weeks later. An acetoxy silicone releases acetic acid as it cures — the vinegar smell — and that acid attacks some metals, including copper and brass and unprotected mild steel, and it is unsuitable against alkaline substrates such as fresh concrete and cement render, where it fails to adhere. A neutral cure silicone releases something far less aggressive and is the correct choice on masonry, on metals and near electronics. Beyond chemistry, a joint sealant is specified by how much the joint moves: a movement capability figure describes the percentage of joint width the cured bead can accommodate, and a sealant used in a joint that moves more than it can handle tears away from one face. In this climate the daily thermal cycle on an external facade makes that a real number rather than a theoretical one.
The more of this you send, the closer the first quotation lands.
| Cure chemistry | Acetoxy or neutral — neutral for masonry, metals and electronics |
|---|---|
| Substrates | Both faces of the joint, including any coating on them |
| Joint width and depth | With the movement, this sizes the bead and any backer rod |
| Joint movement | Expected movement as a percentage of joint width |
| Location | Internal, external facade, wet area, or a glazing joint |
| Temperature range | Service range, and the surface temperature at application |
| Ultraviolet exposure | External joints in Gulf sun need a UV-stable grade |
| Sanitary or mould resistance | For wet areas and washrooms |
| Fire rating | State if the joint crosses a fire compartment boundary |
| Colour | Standard colours, or matched to the facade |
| Primer and backer rod | State if required for the substrates and joint design |
| Annual volume | Cartridges or sausages per year for a schedule price |
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We source to specification. Send your requirement and we will come back with options, lead time and pricing.