Description
The Penosil 312 silicone in Agate Grey is a neutral curing window and door silicone sealant for interior and exterior building work. It is suitable for sealing joints around windows, doors, frames, glazing and general construction areas where a flexible, weatherproof seal is required.
This 300ml Agate Grey cartridge is a replacement for the previous Soudal LMN Agate Grey listing. It is available as either a single tube or a 24 tube box, making it suitable for both one-off sealing jobs and trade use.
Penosil 312 Silicone Agate Grey
The Penosil 312 silicone is designed for high movement joints and general building sealing. It forms a flexible silicone rubber seal and is suitable for use on a wide range of common construction materials.
- Penosil 312 Window & Door Silicone
- Agate Grey colour
- 300ml cartridge
- Neutral curing silicone sealant
- Suitable for interior and exterior use
- Weatherproof and UV resistant
- High movement capability
- Suitable for window, door, frame and glazing work
- Available as 1 tube or 24 tube box
Using Penosil 312 Silicone
Before applying, surfaces should be clean, dry and free from dust, grease and loose material. Cut the cartridge nozzle to the required bead size and apply using a standard sealant gun.
Tool the sealant soon after application to create a neat finish and good contact with the joint edges. Always follow the manufacturer’s instructions for preparation, application and curing.
Agate Grey Silicone for Windows and Doors
This Agate Grey silicone is ideal where the sealant needs to match modern window, door and roofline colours. It is commonly used around PVC, aluminium, painted frames, glazing and general building joints.
Before ordering, check that Agate Grey is the correct colour match for the job. For other colours, browse the full silicone and acrylic sealants range.
Penosil 312 Silicone at TWS
For manufacturer information, see the Penosil Window & Door Silicone 312 product page.
This product is part of our silicone, sealants and tools range. You can also browse other silicone colours, acrylic caulk, sealant tools and related building sealants below.








