APRIL SAVINGS – Dowsil 791 Weatherproof

(2 customer reviews)


From: £8.88£8.28 inc. VAT
£7.40£6.90 ex. VAT

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  • Suitable For: the weather sealing of building components where high movement is anticipated.
  • Area of use: INT & EXT
  • Application Method: silicone gun
  • Volume: 310ml
  • Container Type: cartridge
  • Type: sealant
  • Colour: 10 colours
  • Brand: Dowsil
  • Manufactuer: Dowsil
  • Box Size: 1

 

Introducing Dowsil 791, your premium choice for weatherproof sealant needs. Whether you’re sealing building components or undertaking large-scale construction projects, Dowsil 791 delivers exceptional performance you can rely on, with an April Saving price tag until the end of the month!

Designed with a low modulus, neutral cure, alkoxy formulation, Dowsil 791 is odorless and perfect for areas where high movement is expected. Its versatility shines through as it adheres seamlessly to a wide range of surfaces, both porous and non-porous, without the need for priming.

Key Characteristics:

  • Impeccable Tooling and Slow Skinning: Ideal for extensive construction and glazing tasks, offering precise application with its excellent tooling and slow skinning properties.
  • Superior Adhesion: Bonds effortlessly to various surfaces including glass, metals, plastics, wood (painted or unpainted), uPVC, and polycarbonate.
  • Exceptional Weathering Resistance: Withstands external elements for years, guaranteeing long-lasting protection even under harsh conditions.
  • Non-Slump Formula: Its high viscosity ensures it maintains its structure and integrity on larger joints, preventing sagging or dripping.
  • Resilience Against Fumed Hydrogen Peroxide and Formaldehyde: Provides added durability in environments where these substances may be present.

Don’t compromise on quality when it comes to weather sealing. Trust Dowsil 791 for unrivaled performance and peace of mind, backed by its impressive characteristics and reliability.

 

 

 

For any other Dow Corning products on our website, please click here.

 

 

This item is currently experiencing a 4-5 week lead time

 

USES

– Perimeter pointing internally and externally around uPVC /wood and aluminium.
– Sealing and as an adhesive onto uPVC, plastic trims and components.
– Can be used for sealing soft metals. For instance, lead, copper and zinc.
– For weather sealing and joint sealing on pre-formed panels, Can also be used on curtain walls and glazing sealing.
– Glass to glass sealing and glass to aluminium sealing. Parapet and roof weather sealing applications.
– Suitable as an expansion joint sealant.
– Bedding and sealing of Insulated Glass units.

 

APPLICATION

PRIMER

Dow Corning 791 does not require a primer on most common surfaces, although adhesion tests are recommended before full-scale application. However, if the joint is likely to be immersed or if adhesion is poor (especially on porous surfaces) use a Dow Corning Primer.

SUBSTRATE PREPARATION

Ensure that the desired application area is dry and clean, containing no grease or other contaminants. For instance, remove dust with compressed air or de-grease by using a solvent soaked pad, following by wiping with a clean cloth.

LIMITATIONS

– Not to be used with bitumen asphalt, neoprene and certain organic elastomers, please refer to the datasheet.
– Can not be used in the manufacture of Aquariums.
– Non-overpaintable.
– Not recommended for use as a mirror adhesive.
– Do not use on food grade applications
– Do not use for in and around swimming pools. DC 791 is not suitable for swimming pool areas.
– Can yellow if exposed to bleach or HCl based brick cleaners while curing.

 

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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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      Introducing Dowsil 791, your premium choice for weatherproof sealant needs. Whether you're sealing building components or undertaking large-scale construction projects, Dowsil 791 delivers exceptional performance you can rely on, with an April Saving price tag until the end of the month! Designed with a low modulus, neutral cure, alkoxy formulation, Dowsil 791 is odorless and perfect for areas where high movement is expected. Its versatility shines through as it adheres seamlessly to a wide range of surfaces, both porous and non-porous, without the need for priming. Key Charact