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Scotchgard Heavy Duty Water Shield 1 Can, 400 ml - Water Repellent Spray, Ideal For Outerwear, Tents, Backpacks, Canvas, Polyester And Nylon

£9.9£99Clearance
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About this deal

Traditionally, treatments to reapply that water repellent coating have been silicone based but they are not considered very environmentally friendly. Relatively new to the market are a few water based products. Coverage per can varies with fabric type: from about 5,5 m2 for light nylon to about 1,8 m2 for heavier fabrics Once you have sprayed the liquid onto the surface you must allow it to dry, whilst ensuring that your pets are kept well away until fully dry. In general, Scotchgard™ Heavy Duty Water Shield can be used on cotton, cotton blends, leather, suede, nylon, canvas, and polyester.

The 12 Best Waterproofing Sprays of 2023 | Tested by TripSavvy

It uses water as the carrier and is applied from an aerosol can with no dangerous propellants. The spray can is a “bag on valve” which allows the can to totally empty so you get all the coating you paid for.

Added to the solvent issue is the type of propellants used in the aerosol cans, isobutane and propane, both hydrocarbons which are not exactly environmentally friendly.

How to use Scotchgard™ Heavy Duty Water Shield

Only the Atsko/Sno-Seal spray products have done away with the use of this volatile mixture to power the aerosol applicator, using CO2 captured as a byproduct from other manufacturers. Another plus to this system is that less propellant is needed and more of the waterproofing product ends up in the can.Scotchgard has been around in one form or another for a long time and the Heavy Duty Water Shield is yet another, using a “proprietary” silicone formula. Like the others it replaces the DWR on the fabric and it too uses petroleum solvents to carry the product to the surface. It also uses isobutane and propane as a propellant.

Fabsil Universal Protector Water-Repellent Spray 400ml Fabsil Universal Protector Water-Repellent Spray 400ml

We collected up a group of waterproofing compounds to try out side-by-side. Each of the products was applied to a clean section of uncoated ripstop nylon in the weight range normally used in tents. One benefit of each product is that by being water based, it can be applied to clean fabric that is dry or wet. Application of the product is straightforward, spray a light coating on a clean surface and let it dry, but instructions say to add a second coating after four hours. Even with this, the treated surface did not repel water as well as any of the other products tested.Again, using these solvents makes coating the fabric easy with deep penetration. Once dry, it also repelled water extremely well. As far as how long it will last, instructions say to apply annually.

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