Dowsil 798 Cold & Clean Room Silicone 310ml
£5.47 inc. VAT
£4.56 ex. VAT
- Product ID: 3307271/C05
- Suitable For: sealing areas in refrigeration units and cold rooms
- Area of use: INT & EXT
- Application Method: silicone gun
- Volume: 310ml
- Container Type: cartridge
- Type: sealant
- Colour: white
- Brand: Dowsil
- Manufactuer: Dowsil
High-Performance Construction Sealant
This versatile, high-performance sealant is engineered for a broad range of construction and industrial applications. It offers excellent primerless adhesion to both porous and non-porous surfaces, making it ideal for glazing, weatherproofing, and perimeter sealing tasks. With its fast-curing formula and long-term flexibility, it provides a durable seal in both internal and external environments — even under harsh weather or heavy movement.
Key Features:
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Excellent primerless adhesion to most building materials
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Suitable for internal and external use
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Fast curing for quicker handling and project completion
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UV, chemical, and weather resistant
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Low odour and low dirt pick-up
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Superior flexibility of ±25% for dynamic joints
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Waterproof and durable under extreme temperatures (-50°C to +150°C)
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Easy application with excellent tooling and break-off
Typical Uses:
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Perimeter sealing around uPVC, wood, and aluminium window and door frames
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Expansion joints and structural movement joints
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Weatherproofing curtain walling, façade panels, and rooflines
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General glazing, draught proofing, and over-seal repairs
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Sanitary applications including bathrooms and kitchens
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Sealing glass-to-glass and glass-to-metal interfaces
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Suitable for soft metals such as lead, copper, zinc, and brass
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Industrial sealing on anodised aluminium, coated metals, and stainless steel
This sealant is the go-to solution for professionals needing reliable, long-lasting performance across a wide range of construction and sealing applications.
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For further information about Dowsil 798, please follow this link here.
For our full range of Dowsil products, click here.
Dowsil 798 is ideal for sealing areas in refrigeration units and cold rooms, internal or external.
Dowsil 798 Application
Preparation
Surfaces for application should be clean, free from dust, dry and stable. The temperature should be above 5 degrees for the use of Dowsil 798.
Back-up materials
When back-up material is required, used a closed-cell polyethene backer rod that can be found in the related product section. AKA Joint backer rod.
Finishing
Once you have applied the silicone into the joint, any tooling should be completed within five minutes.
Clean-up
If the sealant is misapplied to porous substrates, it should be left until just cured. Once cured then removed by peeling, cutting or other means ensuring not to damage plastic or coated surfaces.
Joint design
Width and depth of the application of product are as following:
6mm – 12mm width, a sealant depth of 6mm.
12mm or above width, a width to depth ratio of 2:1 is required
If you are using backing rod/backing jointing a minimum of 6mm sealant bite to each substrate is recommended.
1 review for Dowsil 798 Cold & Clean Room Silicone 310ml
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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 |
|
| 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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Helen Hale (verified owner) –
Fantastic and efficient service. Thank you