
Mould Resistant
Gorilla Window & Door Frame Sealant – Clear
The 100% waterproof, anti-mould and UV resistant sealant for use on frames indoors and out.
Anti-mould formula that prevents the growth of mould and mildew when cleaned regularly.
Creates a completely waterproof seal to protect against leaks around window and door frames.
Fast-setting formula allows exposure to water after just 30 minutes.
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BUILD, FIX AND REPAIR
Gorilla Window & Door Frame Sealant – Clear

All surfaces must be clean, dry and free of dirt, grease, oil and old sealant. For gaps larger than 12mm, use a backer rod to fill the gap. Do not use on wet, frozen or contaminated surfaces. Not paintable. Not for use in underwater applications, aquariums, on brick or cementitious materials. Cut off the seal at the top of the cartridge above the screw thread. Screw on nozzle and remove cap. Cut nozzle at 45° to desired bead size using guides on nozzle for reference. Insert into cartridge gun.
Apply sealant, pushing bead ahead of nozzle. Best results achieved if applied above 5°C. COVERAGE: 14m with a 5mm bead.
Smooth bead immediately after application using a sealant smoothing tool. Can be exposed to water after 30 minutes, based on a 5mm bead at 21°C and 50% humidity. Full cure achieved in 24 hours. Cure time will increase with lower temperature, lower humidity and larger bead size. Remove excess sealant immediately with a dry cloth.
Do not remove nozzle. Wipe nozzle with a dry cloth. Isopropyl alcohol may be used according to solvent manufacturer’s instructions. Replace cap tightly and store in a cool, dry place away from children and animals. To re-use product, unscrew nozzle and clean out cured sealant.
technical specs
PRODUCT FEATURES
#Mould Resistant* – Anti-mould formula that prevents the growth of mould and mildew.
#100% Waterproof - Creates a completely waterproof seal to protect against leaks around window and door frames.
#Rain Ready in 30 Minutes** - Fast-setting formula allows exposure to water after just 30 minutes.
#UV Resistant – won’t yellow, even when exposed to UV.
#Shrink & Crack Proof – Flexible, 100% silicone formula (once cured) that won’t shrink, crack or split with movement.
#Lifetime Guarantee*** – Guaranteed to perform as described or your money back.
#*When cured. Cured sealant must be cleaned regularly to prevent growth. **based on a 5mm bead at 21°C and 50% humidity. ***Guaranteed for the life of the material this product is applied to, or your product cost refunded. Full terms at gorillaglue.com. Your statutory rights are unaffected.

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Frequently Asked
Questions
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Gorilla products are widely stocked across the UK. You'll find our range at major retailers including Amazon, Tesco, B&Q, Wilko, Wickes, Homebase, Travis Perkins, Screwfix, Sainsbury's, Morrisons, Hobbycraft, Toolstation, Ryman, ASDA, Dunelm, and The Range. To find your nearest stockist, enter your postcode in our store finder. Please note that not all retailers stock the full Gorilla range — contact your local store to check availability.
If you're looking to stock Gorilla products in your business or use them in trade, our range is available through a number of wholesale distributors including Toolbank, Stax Trade Centres, Decco, TDUK, Wilsons, Home Hardware, and EFG Wholesale.
Each Gorilla product is engineered for specific applications. Check the product label for material compatibility, or visit our website's product selector tool to find the perfect adhesive, tape, or sealant for your project. Our range covers everything from indoor repairs to heavy-duty outdoor bonding.
Sign up to our newsletter at the bottom of this page to be the first to hear about new product launches, exclusive offers, and tips from the Gorilla team. You can also follow us on social media for the latest updates and inspiration.
#WHAT MAKES GORILLA SEALANT DIFFERENT FROM STANDARD SILICONE SEALANTS? / +Gorilla Sealants are 100% silicone once cured, whereas some sealants can be diluted with water or solvents. Dilution can lead to shrinking or cracking, whereas Gorilla Sealants are proven to be shrink and crack proof. Our sealants can be exposed to water within 30 minutes of application, whereas other brands may require 1 hour or more of drying time. We also offer a lifetime guarantee that this product will meet its performance properties for the lifetime of the material to which it is applied; otherwise, we will refund or replace the product. See below for further details.
#WHAT IS THE GORILLA LIFETIME GUARANTEE? / +Gorilla Glue Europe Limited of PO Box 663, Chorley, PR7 6PU, guarantees that its sealant products (Kitchen & Bathroom Sealant White, Kitchen & Bathroom Sealant Clear, Window & Door Frame Sealant White, Window & Door Frame Sealant Clear) will meet the indicated performance properties set out on the packaging for the lifetime of the unit, structure or material to which it is applied. If you are not satisfied with the product, please return proof of purchase or the remaining product to us at the above address for a replacement product or refund. The refund will not exceed the full price of the product. This guarantee is only valid in the United Kingdom and is in addition to, and does not affect, your statutory rights. You may transfer this guarantee to a person who has acquired your property, but we may require the person to whom the guarantee is transferred to provide reasonable evidence that the guarantee has been transferred to them. The guarantee is not valid if the failure of the product to comply with the performance properties arises as a result of: 1. Misuse of the product or failure to adequately maintain the product or unit; 2. Fair wear and tear of the unit on which the product is used or if the unit is otherwise defective; 3. Damage to the unit occurring accidentally or by natural disaster, vandalism or criminal activity.
#IS GORILLA SEALANT MOULD RESISTANT? / +Yes, all of our Gorilla Sealants are mould resistant once cured. Cured sealant must be cleaned regularly to prevent growth. Our sealants have been tested to the required external standard, EN 15651-3. If you would like more information on this, please contact our technical team via the ‘Contact Us’ section on the website for assistance.
#IS THE NOZZLE ON GORILLA SEALANT REUSABLE? / +Yes. Keep the nozzle attached after use and wipe away any excess product before replacing the cap. Any sealant still in the nozzle can be left to cure completely, then manually removed for next use.
#CAN GORILLA SEALANT BE USED INDOORS AND OUTDOORS? / +Yes, all of our Gorilla Sealants have been tested and approved for use on both indoor and outdoor applications. They have been tested to the required external standard EN 15651-1 F-INT-EXT-CC. This means that the product has been proven to work on building exteriors (F = facade), both indoors and outdoors (INT-EXT), and has also been confirmed in cold climates (CC), so it will not fail in freezing conditions. If you would like more information on this, please contact our technical team via the ‘Contact Us’ section on the website for assistance.
#HOW SOON CAN GORILLA SEALANT BE EXPOSED TO WATER? / +Gorilla Sealants can be exposed to water after 30 minutes, based on a 5mm bead at 21°C and 50% humidity. Full cure is achieved in 24 hours, though this will increase with lower temperature, lower humidity and larger bead size.
#WHAT IS THE DIFFERENCE BETWEEN GORILLA SEALANT AND THE GORILLA WATERPROOFING RANGE? / +Gorilla Sealants are designed to seal a gap, joint or edge, specifically to stop water, dust or moisture getting through. They are made of silicone and often remain soft and flexible once cured. Our Waterproofing range is designed to seal and protect surfaces against leaks and is intended for a wider range of application areas and substrates, including guttering, drainpipes and tiles. Our sealants are available in a cartridge and must be used in a cartridge gun. Our Waterproofing range offers different methods of application, including tapes, liquids and a spray. If you would like more information on which Gorilla product is best for your application, please contact our technical team via the ‘Contact Us’ section on the website for assistance.
#WHAT IS GORILLA SEALANT’S TEMPERATURE TOLERANCE? / +Gorilla Sealants should be applied between 4°C and 37°C, and apply best above 5°C. Once cured, Gorilla Sealants can withstand temperatures between -40°C and 176°C.
#HOW DO I REMOVE GORILLA SEALANT FROM MY SURFACE? / +Any wet or uncured sealant can be removed immediately with a dry cloth. Isopropyl alcohol can be used according to the solvent manufacturer’s instructions. For cured or dried sealant, use mechanical means such as scraping or sanding.
#HOW DO I REMOVE GORILLA SEALANT FROM MY SKIN? / +Wipe off as much sealant as possible with a dry cloth. When the majority of the sealant has been removed, wash the skin thoroughly with soap and warm water.
#WHAT IS THE APPROXIMATE SHELF LIFE OF GORILLA SEALANT? / +The approximate shelf life of Gorilla Sealant is up to 3 years, unopened from the date of manufacture. Once opened, there is no standard time, as it will depend on storage conditions and the age of the product. Up to 6 months is a good guideline.
#CAN GORILLA SEALANT BE USED ON METAL APPLICATIONS? / +Yes, Gorilla Sealants can be used on most metal surfaces, provided they are clean, dry and free from grease, oil and old sealant. They cannot be used on metals sensitive to corrosion or galvanised metals. Do not use Gorilla Sealant on wet, frozen or contaminated surfaces.
#IS GORILLA SEALANT PAINTABLE? / +No, due to their composition, our range of Gorilla Sealants is not paintable. They are made of silicone, which is a material that paint cannot adhere to.
#WHAT APPLICATIONS WILL GORILLA SEALANTS WORK WELL WITH? / +Our range of Gorilla Sealants can be used on a wide range of substrates, including window and door frames, uPVC, laminate, granite, stone, ceramic, wood, gutters, facades, showers, toilets, baths, sinks and worktops. It works on metal; however, it cannot be used on metals sensitive to corrosion or galvanised metals. It also works on glass, though we would not recommend use on broken glass. It is not for use on wet, frozen or contaminated surfaces, or in underwater applications, aquariums, on brick or cementitious materials.
#WHAT SHOULD I DO IF I THINK A HUMAN OR ANIMAL INGESTED GORILLA SEALANT? / +For medical emergencies, seek medical assistance immediately. Call 999 for emergency services. For animal emergencies, contact a vet or animal specialist immediately. Warning and hazard information can be found on product packaging and in the product Safety Data Sheet (SDS).

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Gorilla Window & Door Frame Sealant – Clear
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More About This Product
Gorilla Window & Door Frame Clear Features & Applications
SEAL WINDOWS & DOOR FRAMES WITH CONFIDENCE
Designed for window and door frames indoors and out, Gorilla Window & Door Frame Silicone Sealant creates a strong, flexible seal you can rely on, even with movement and changing weather.
100% WATERPROOF & MOULD RESISTANT*
Forms a completely waterproof barrier to protect against leaks. The anti-mould formula helps prevent mould and mildew growth for a cleaner, long-lasting finish.
RAIN READY IN 30 MINUTES**
Fast-setting formula allows exposure to water just 30 minutes after application, so you can finish the job and get on with your day without worrying about sudden showers.
FLEXIBLE, UV-RESISTANT FORMULA
100% silicone formula that won’t yellow, shrink or crack, even with UV exposure and everyday movement around frames.
LIFETIME GUARANTEE***
Built to last and guaranteed to perform as described, or your money back. Gorilla gives you the confidence that the seal will hold strong.







