Project: Seal shower tray – rolling
SPEEDLINER PRO – roller and brush
We show you how to seal a leaky shower tray in your camper or caravan with SPEEDLINER PRO. Everything is free: step-by-step online guide, video tutorial, and printable PDF.
You’ll find all required products listed in the prebuilt cart. Add them to your basket with one click.
Have fun — it’s easier than you think ;-)
Complete cart:
All products for your shower-tray sealing project
All required products are in our prebuilt cart; just add your desired pigment and adjust quantities if needed (choose pigment >>).
PROJECT GUIDES
Video tutorial:
Seal shower tray with SPEEDLINER PRO
We show you how to fully seal your shower tray yourself. Step-by-step and easy to follow.
Step-by-step guide:
Fix your leaky shower tray — step by step
This guide covers all steps to seal your leaky shower tray: preparation, sanding, priming, coating — with practical tips & tricks for durable protection.
Step 0: Check tray suitability
Most trays are PVC or ABS and work fine. Rare plastics (e.g., PST) should be tested for load/adhesion first.
Some geometries are hard to reach with a roller/brush and are better sprayed. Check the shape beforehand.
Example of a tray suitable for rolling/brush:
Example of a tray that should be sprayed only:
Consult our application technician if unsure to avoid simple mistakes.
Step 1: Masking
Masking is simpler for rolling/brush than for spraying.
First apply a 20 mm tape parallel to the rim, then cover the area to the rim with 30 mm tape. This master tape is removed after coating. Protect other areas with paper/foil. Don’t forget to plug/tape the drain.
Step 2: Sand the tray
Clean and sand thoroughly with 80-grit paper/sponge. Also sand the edges — do not damage the master tape.
Repair broken areas with a plastic stapler if needed, seal cracks with PU sealant, and underpin soft floors with foam. More info: repair cracked shower tray.
Step 3: Clean & prime
Vacuum dust. Remove grease/wax with PLC cleaner or brake cleaner.
Apply PP100 plastic primer thinly and evenly with a brush to floor, sides and edges.
Primer is grey in the tutorial for visibility — in practice it’s clear.
Let the primer dry 20–30 minutes (max. 2 hours). After 2 hours, re-apply.
Step 4: Mix coating material
For an average tray, the SPEEDLINER PRO 1-bottle set is sufficient.
Mix about 250 ml by volume in a mixing cup.
See the SPEEDLINER PRO processing guidelines for component A/B and pigment ratios.
Step 5: Apply coating
Brush 50 mm along edges/corners, floor drain and hard-to-reach areas first.
Then roll the rest: floor ~1.5 mm, sides ~1 mm. For thicker build, add 2nd/3rd passes.
Step 6: Short drying time
After rolling, take a ~20-minute break.
Step 7: Apply texture
Texture defines look and slip resistance. Mix ~150 ml for texturing.
“Standard” roller gives light texture; “Texture roller” gives a stronger pattern.
Step 8: Break
Let it set for ~20 minutes.
Step 9: Apply Topcoat (optional)
White coatings aren’t UV-stable and may yellow. A Topcoat prevents this (recommended for tones lighter than light grey).
Apply Topcoat over SPEEDLINER PRO after ~45 min to 24 h without extra primer (we recommend ≥ 12 h). Rolls/brushes very well.
Drying: tack-free ~2 h, dry ~12 h at 25 °C/50% RH; serviceable in ~48–72 h; full properties after ~3 weeks.
Step 10: Remove master tape
Peel the master tape off carefully at a 45° angle.
Step 11: Demask
Let the coating dry at least 12 hours, protect from water/moisture. Strength increases as it cures and bonds permanently to the tray.
After 12 hours, remove foil, paper and remaining tape.
All done!