DOWSIL™ 799 Plastic and Glass Silicone Sealant


DOWSIL™ 799 is a one-part neutral curing, low modulus silicone sealant specially formulated for glazing and weathersealing of windows.

Product info


  • Offers durable adhesion to most porous and non-porous substrates including masonry, brick, aluminium, PVC, glass and glazed surfaces
  • Mould and mildew resistant
  • Easy to apply and tool
  • Neutral cure
  • Low modulus, high elasticity
  • Low odour




Technical Information

Where to use Exterior
Paintable No
Sizes 310 ml
Application method Sealant Gun and Cartridge


Surface Preparation

Surfaces must be cleaned, dry and free from grease and dust. Non-porous surfaces, such as aluminium, glass etc., should be cleaned with a suitable solvent for the substrate.

Application Instructions

Apply sealant to the desired area using a sealant gun. Once finished, the joint should be tooled within 5 minutes of application to ensure good adhesion. For an extensive list of application methods, please consult the Technical Data Sheet.

Clean up

Uncured material can be removed by using a solvent. Cured material may be removed by abrasion or other mechanical means.

Quantity Estimator

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