Construction guide for butyl rubber waterproof tape
How to apply waterproof butyl tape
2026-03-30
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Construction guide for butyl rubber waterproof tape
1、 Surface Preparation
-- Surface requirements: The construction surface must be sturdy, dry, flat, free of oil stains, and loose -- materials.
-- Cleaning treatment: Use a wire brush to remove floating dust, and then wipe with a special cleaning agent or alcohol.
-- Special parts: Yin and Yang corners, pipe roots, etc. should be made into arcs or 45 ° slope angles.
2、 Standard construction steps
◉ Cutting and pre laying
-- Cut the tape according to the seam length of+5-10cm.
-- Tear off one side of the isolation film and temporarily fix one end first.
◉ Paste operation
-- Slowly unfold along the centerline of the joint, while tearing off the isolation film and compacting it with a scraper.
-- Apply pressure from the middle to both sides, eliminate air, and ensure that there are no bubbles or wrinkles
Overlap width: Longitudinal overlap ≥ 8cm, transverse overlap ≥ 10cm.
◉ Closing processing
-- Apply a terminal back pressure of 5cm or more and press firmly.
-- The parapet wall, pipes and other parts should be wrapped in a "U" shape, with a height of ≥ 25cm when flipped up.
3、 Key control points
◉ Temperature requirements:
-- Best construction temperature: 5 ℃ -35 ℃.
-- Preheat the base layer and tape below 5 ℃.
-- Avoid construction on rainy days, dry for 24 hours after rain.
◉ Compaction standard:
-- The edge of the tape should have a uniform overflow of glue.
-- Use a roller to roll back and forth 3-4 times.
-- Additional mechanical fixation for key areas.
4、 Quality inspection
-- Appearance inspection: no bubbles, wrinkles, or leakage pressure.
-- Sealing test: Watering test can be conducted 24 hours after construction.
-- Thickness testing: The final formed thickness should reach over 90% of the nominal value.
5、 Precautions
-- Do not stretch or paste (just lay it flat naturally).
-- The overlapping area must be reinforced with special sealant.
-- Avoid trampling and water flushing within 24 hours after construction.
-- Storage requirements: cool and dry, avoid direct sunlight.
6、 Common problem handling
| Problem phenomenon | Root cause analysis | solution |
| Edge raised | Grassroots are damp/insufficiently cleaned | After removal, rebuild to ensure that the moisture content of the base layer is ≤ 8% |
| Bubble in the middle | Incomplete exhaust/construction too fast | Puncture the bubble, heat it with a hot air gun, and then re roll it |
| Insufficient viscosity | Low temperature/residual isolation film | Heating to above 15 ℃ for construction, check if the isolation film is completely removed |
According to the standardized construction process above, the butyl tape waterproofing system can reach the designed service life (usually 10-15 years). It is recommended to refer to the special construction party provided by the manufacturer for special engineering parts.
Our company not only produces Butyl Rubber Tape, but also Acrylic Foam Tape,Anti Slip Tape,Reflective Tape,Aluminum Foil Tapes,Pavement Marking Tape, Glow In Dark Tape, etc,Looking forward to working with you.
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