Everbuild 115 General Purpose Building Mastic 285ml

115 GP Building Mastic is an oil-based compound designed for general pointing and sealing of various joints in traditional construction methods. This high-performance mastic provides a durable, weatherproof seal, making it ideal for both internal and external use.

Key Features

• Overpaintable.
• Adheres to most common surfaces.
• Semi-drying—remains permanently plastic beneath the surface skin.
• High solids formulation for excellent gap-filling properties.

Usage

• Perimeter pointing around doors and windows, both internally and externally.
• Adheres to concrete, brick, wood, metals, and glass without the need for a primer.
• Suitable for sealing composite sectional panels and low movement vertical building joints.

Advantages

• Overpaintable for seamless integration with existing surfaces.
• Excellent adhesion to a variety of materials.
• Semi-drying formula remains flexible and durable over time.
• High solids content ensures superior gap-filling capabilities.
• Outstanding weather resistance for exterior use.

Sika codes:
Brown - 489634
Grey - 489635
Stone - 489636
White - 489637

All orders are despatched from our warehouse in West Bromwich, West Midlands.

Next Working Day Delivery

• Order Value Under £500 (ex. VAT) - £6.95
• Order Value Over £500 (ex. VAT) - FREE

Same Day Delivery

• Same Day: £35
• Available in Birmingham, Dudley, Sandwell, Walsall, and Wolverhampton
• Orders must be placed by 12pm. Delivery in as little as 20 minutes.

Scottish Highlands & Islands

Postcodes: IV, HS, KA27-28, KW, PA20-49, PA60-78, PH17-26, PH30-44, PH49-50, AB31, AB33-38, AB45, AB52-56, FK17-21, ZE

• Delivery Charge: £18
• Delivery of insulation and metal profiles to these areas is not included in the standard delivery charge. For these areas, delivery costs are provided on a Price on Application (POA) basis.
• If your delivery address falls within one of these postcodes, you may see two delivery options. Please select the higher-priced option. We are working to improve the checkout experience and appreciate your patience.

Northern Ireland, Isle of Man, and Isles of Scilly

Postcodes: BT, IM, TR21-25

• Delivery Charge: £27
• Unfortunately, we're unable to deliver any insulation and metal profile products to these areas.
• If your delivery address falls within one of these postcodes, you may see two delivery options. Please select the higher-priced option. We are working to improve the checkout experience and appreciate your patience.

Delivery Lead Times

Most products on this site are stock lines, meaning under normal circumstances they'll be available for next day delivery. Some products are not kept in stock and are ordered from the manufacturer after your purchase. These products state the lead times at the top of the product pages. By default, orders containing items with different lead times will be despatched together based on the longest lead time.

Delivery Cut Off Times

The deadline for same-day despatch is 4pm, Monday to Friday. This deadline may not apply if we are unusually busy, if your order is unusually large, or if the carrier's vehicle has reached its weight limit.

Delivery Methods

We deliver nationwide using carriers DPD, Parcelforce and DX Freight. Deliveries within our local area will be made on our own transport. Tracking information will be provided shortly after despatch. For local deliveries, we will call ahead to ensure someone is available to accept the delivery. If you have any special requirements, please let us know at checkout or contact us by phone or email.