Liquid Rubber Help Center logo
Liquid Rubber Help Center logo

All articles

Shower Liner FAQUpdated 8 months ago


Question: Which products do I use? 

Answer: Liquid Rubber Foundation Sealant is what is typically used for this application and is meant to be tiled or otherwise clad over. (not meant for constant UV exposure. Not meant as a contact surface.)

Question: How much do I need?

Answer: How much sealant or primer you need depends on the specific product and the project it is being used for. To see which products you need and what the coverage rates are for your project, click here.

Answer: To determine how much sealant or primer you need, divide your total square footage by the coverage rate provided. Example: You have a 200 sq ft surface area and the Foundation Sealant coverage rate is 1 gallon per 20 sq ft.  so 200/20 = 10 gallons of the Foundation Sealant. (Apply in multiple coats until all material has been used.). Coverage rates are expressed in final coverage and will include all coats needed to achieve membrane thickness.

Question: Do I need a primer? 

Answer: No. Primer is typically not needed for this application unless there is a source of moisture from behind the substrate.

Question: Do I need Geo-Textile or Seam Tape? 

Answer: Yes. Use Liquid Rubber Geo-Textile or Liquid Rubber Seam Tape over cracks, joints, around penetrations, etc. to reinforce against thermal and other movements. These are the area's most likely to leak.

Question: What tools do I need to apply my Liquid Rubber products? 

Answer: Most of our coatings and primers are applied using a brush or 10mm (3/8") nap roller. 

Answer: You will need a heavy industrial spray unit capable of spraying a bitumen coating (e.g. Graco GH833), however, most homeowners will not have access to this equipment. 

Answer: Click here to go to our project pages and to download the application guidelines for more information.

Question: What do I use to adhere my tile to the Liquid Rubber Foundation Sealant? 

Answer: Use a water-based tile adhesive or polymer modified thin-set.

Question: I have heavy tile, can I install metal lathing over the coating? Won't it compromise the coating.

Answer: Of course it is always preferred that you do not puncture the coating but in cases like this where you have to, you will need to go back and carefully seal over the staples, etc., used to secure the lathing to the wall or floor.

Question: Do you have application guidelines/instructions to help me with my installation? 

Answer: Yes. Application guidelines can be found on our project pages (click here) or on our product pages (click here).

Question: Do you have application videos to help me with my installation? 

Answer: Yes. Application videos can be found on our project pages (click here) or on our YouTube channel (click here).

Question: Do I need a new brush/roller every time I apply a new coat?

Answer: If you wrap your brush/roller in plastic (e.g. a grocery bag) you will slow down the curing process and you should be able to use the same brush/roller for your next coat. You can go a step further and place the plastic bag in the refrigerator (Do not allow contact with food)

Question: Can Liquid Rubber products be applied to concrete/cement board/Hardi board? 

Answer: Yes. Liquid Rubber products bond very well to these materials. Concrete must be fully cured, free of laitance and efflorescence and have a moisture content of less than 15%. Refer to our application guidelines for more information.

Question: Can I coat over an existing coating or paint?

Answer: You can apply over most acrylic/latex, polyurethane, alkyd paint, epoxy paints/coatings with the use of our Liquid Rubber Multi-Purpose Primer and using proper cleaning/preparation techniques. Keep in mind that when you apply over an existing coating or paint, if that coating/paint peels, our coating will peel with it as it is bonded to the existing coating/paint and not directly to the substrate.

Answer: It is recommended to remove oil based or recently applied coatings with high solvent content prior to applying your Liquid Rubber products. (oil and water don't mix and solvents can deteriorate our water-based coatings)

Question: What if I have a problem or question with an application?

Answer: Our technical support team is here to help you, just reach out to call. email or chat with one of our representatives.

Answer: You very well may find the answer you are looking for in one of our application guidelines, which can be found on our project pages here.

Was this article helpful?