FyberLok™ Standard Shower Waterproofing Kit (Covers up to 35 Sq. Ft)
- FyberLok™ Part A and Part B liquid components (pre-measured for your kit size)
- FyberMat™ reinforcement (pre-measured for your coverage area)
- FyberFil™ filler powder
- Mixing cups (10) · Gloves (5 pairs) · Mixing sticks (5) · Sandpaper (1) · Scissors (1) · Filler bags (2) · Tape (1 roll)
- FyberLok Install Portal access: step-by-step install videos (scan the QR code on your kit)
Use a standard thinset made for tiling over fiberglass surfaces. FyberLok™ is tile-ready in 12–24 hours, depending on temperature. Our thinset picks are in the Install Portal.
FyberLok provides the waterproofing layer beneath tile over the prepared shower floor, lower walls, curb and planned features. It does not replace the required supporting construction or create the shower pitch. Review your surfaces and drain arrangement before installing.
No. You'll need a tape measure and a utility knife. Everything else comes in the kit.
Yes. FyberLok™ is tile-ready in 12–24 hours, depending on temperature. Then you tile right over it with a thinset made for fiberglass surfaces. Our picks are in the Install Portal.
FyberLok™ bonds into your shower and forms one solid waterproof shell under the tile. Think Fiberglass has installed this system on real jobs for over 25 years. Follow the steps in the Install Portal and it's built to last.
⚠️ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Which FyberLok™ kit do I need?
Enter your shower base size. Add a seat or niches only if you have them. Leave those fields blank if you don't.
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Check with your local building department before installing. Questions? Call (845) 494-6277 · Think Fiberglass · Stony Point, NY
The FyberLok™ Standard Kit is sized for small to mid-size showers, remodels, and guest bathrooms. It covers approximately 35 sq. ft. FyberMat™ is fully saturated with FyberLok™ Part A and Part B liquid components to form a solid, watertight shell that becomes part of the shower structure.
FyberLok™ is applied over the prepared floor, lower surrounding walls, curb and planned features. Count all of these surfaces when choosing your kit. Your shower is typically tile-ready in 12–24 hours, depending on temperature and site conditions. Follow the Install Portal guidance before tiling.
Key Benefits:
- Solid Bonding: fuses into a single, continuous watertight shell
- Planned Coverage: include lower walls, the curb and built-in features—not just the floor footprint
- Tile Planning: typically tile-ready in 12–24 hours, depending on temperature and site conditions; follow the Install Portal guidance
- DIY-Friendly: step-by-step video training in the FyberLok Install Portal, with the essentials included
- One Solid Shell: overlaps bond into one continuous waterproof layer
Check local shower waterproofing requirements before installing. Use the Shower Layout Guide to plan surfaces and the drain connection.
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"Nothing but the best. 13 years ago had my shower done. Hasn't cracked or leaked."
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