Dowsil Sealant & Caulking Guns

Dowsil Sealant & Caulking Guns at MyToolShed.co.uk

Dowsil sealants are made for sealing, bonding and weatherproofing in building and renovation work. This category is organised by sealant type, so you can go straight to Acrylic Sealant, Silicone Sealant or Specialist Sealants for the job in hand.

Whether you are a glazier, bathroom fitter, decorator or general builder, a Dowsil cartridge gives you a neat, durable seal around windows, frames, sanitaryware and joints. Most cartridges are applied with a standard caulking gun.

Dowsil Sealant & Caulking Guns Features and Benefits

• Flexible, long-lasting seals: silicone formulations move with the substrate, helping joints stay watertight as materials expand and contract.
• Weather resistance: suited to external glazing and frame sealing where rain, UV and temperature swings are a concern.
• Clean, smooth finish: products tool off neatly, which saves time on visible joints and reduces rework.
• Strong adhesion: bonds well to common building surfaces such as glass, metal and many plastics, depending on the product chosen.
• Type-specific options: acrylic for paintable interior gaps, silicone for wet areas and glazing, and specialist products for more demanding applications.

Popular Dowsil Sealant & Caulking Guns

Acrylic Sealant

A good choice for filling gaps and cracks around skirting boards, architraves and door frames. Acrylics are generally paintable, so they suit decorating and finishing work indoors.

Silicone Sealant

Used for kitchens, bathrooms, showers and glazing, where a flexible, water-resistant seal is essential. Check the product data sheet to confirm it suits your substrate and environment.

Specialist Sealants

For jobs that go beyond standard sealing, such as structural glazing or bonding on particular materials. Always check the technical specification to make sure the product matches your application.

Frequently Asked Questions

How do I choose between acrylic and silicone sealant?

Choose acrylic for interior gaps that will be painted, such as around trims and frames. Choose silicone for wet or external areas, such as baths, showers and window glazing, where flexibility and water resistance matter most. Silicone is generally not paintable.

How should I prepare a joint before applying Dowsil sealant?

Make sure surfaces are clean, dry and free from dust, grease and old sealant. Cut the cartridge nozzle to suit the joint width, apply steady pressure with your caulking gun, then tool the bead smooth before it skins over. Follow the instructions on the cartridge for cure times.