Thompsons One Coat Water Seal
From: £13.07 inc. VAT
£10.89 ex. VAT
- Brand: Thompson
- Manufactuer: Thompson
Thompson’s One Coat Water Seal is a fast-acting, advanced exterior wood protector designed to deliver maximum waterproofing in just a single coat. Formulated with water-repellent polymers, it penetrates deep into the wood to help prevent water damage, cracking, warping, and mildew growth while still allowing the wood to breathe. Ideal for decks, fences, and outdoor furniture, this clear sealer enhances the natural look of the wood without leaving a heavy surface film, and its quick-drying formula means projects can be completed efficiently with long-lasting protection against the elements.
Thompson’s One Coat Water Seal is designed to protect exterior wood surfaces by forming a durable, water-repellent barrier that helps prevent moisture damage, cracking, and warping. It is commonly used on decks, fences, outdoor furniture, and other exposed wood where rain and humidity are a concern. The one-coat formula allows for faster application while still penetrating the wood to enhance long-lasting protection against water intrusion and mildew growth. By sealing the surface, it helps extend the life of the wood and maintain its appearance with minimal maintenance.
Thompson’s WaterSeal One Coat Water Seal is designed for easy, single-application protection of exterior wood surfaces such as decks, fences, and outdoor furniture, where it penetrates the wood to help repel water and reduce moisture-related damage. Its one-coat formula makes it especially suitable for maintenance projects and previously sealed or weathered wood, allowing for quicker completion with minimal labor. However, the product has limitations: it is not intended to correct structural defects, seal active leaks, or provide long-term resistance to heavy abrasion or standing water. Performance can also be reduced on extremely dense, non-porous, or improperly prepared surfaces, and it may require more frequent reapplication compared to multi-coat or film-forming finishes, particularly in high-traffic or harsh weather environments.
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| Elementlength | |||||||
| up to 1,5 m |
up to 2,5 m |
up to 3,5 m |
up to 4,5 m |
up to 2,5 m |
up to 3,5 m |
up to 4,5 m |
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| Type of window frame material |
Minimum witdth of joints for a butled mounting b in mm |
Minimum witdth of joints for a inner mounting b in mm |
|||||
| Hard PVC (white) | 10 | 15 | 20 | 25 | 10 | 10 | 15 |
| Hard PVC and PMMA (dark) (colour extruded) |
15 | 20 | 25 | 30 | 10 | 15 | 20 |
| Hard PUR integral foam | 10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Wood-aluminium-window | 10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Aluminium-plastic sandwich frame (bright) |
10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Aluminium-plastic sandwich frame (dark) |
10 | 15 | 20 | 25 | 10 | 10 | 15 |
| Wooden window frame | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
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Anonymous (verified owner) –
fast service-well packed