Glass Putty Soudal SIL ST-1 kit 1 kg — glazing filler for window panes and frames

Soudal SIL ST-1 glass putty kit, 1 kg, is a ready-to-use glazing filler formulated for sealing and bedding window panes and frames. The product is supplied as a putty that can be manually applied to secure glass in wooden or metal frames, fill perimeter joints and create a watertight seal. It is intended for installation and repair tasks on windows and small glazing projects where a durable, pliable sealing compound is required.

Advantages

The glazing putty offers good adhesion to common frame materials and glass, enabling a stable bedding for panes without additional primers on suitable substrates. Its ready-to-use consistency allows straightforward manual application and shaping. Once applied, the compound forms a flexible seal that accommodates minor movements and provides protection against water ingress. The product is suitable for repair work and small installation jobs, reducing preparation time compared with multi-component systems.

Suitable for

• Sealing and bedding glass panes in wooden window frames
• Bedding glass in metal or aluminium frames for small-scale glazing
• Repairing perimeter joints and re-puttying aged glazing seals
• DIY glazing projects and small-scale installation or refurbishment

Key specifications

• Form: ready-to-use putty
• Package size: 1 kg kit
• Application method: manual application and shaping
• Compatibility: suitable for use with glass, wood and common metal frames
• Performance: forms a flexible, watertight seal

How to use

Prepare the joint and glazing rebate by cleaning away old putty, dust, grease and loose material. Ensure surfaces are dry and free from contaminants that could impair adhesion. Press the putty into the rebate or joint by hand, shaping it to the required profile and compacting to ensure full contact with the glass edge and frame. Remove excess putty and finish the surface with a suitable tool or spatula to obtain a smooth seal. Allow the putty to cure or skin as indicated by ambient conditions before painting or further finishing if applicable.

Usage recommendations

Use appropriate personal protective equipment such as gloves when handling the putty. Avoid application at very low temperatures or on damp substrates. Test compatibility on a small area if in doubt about contact with certain coated surfaces. Store the remaining product in its original packaging in a cool, dry place.