- How long does the concrete have to be cured before TREMproof 250GC can be applied?
Most fluid-applied below-grade waterproofing membranes require a minimum of 14 days and preferably 28 days cure of the concrete prior to application. TREMproof 250GC may be applied 24 hours after removal of the concrete forms.
- What applications are TREMproof 201/60 and TREMproof 250GC suitable for?
TREMproof 201/60 and TREMproof 250GC are suitable for Backfilled Walls, Between Slab, and Planter applications. TREMProof 250GC may also be used in non-potable water storage tanks.
- What viscosity grades are TREMproof 201/60 and TREMproof 250GC available in?
S/L = Self-Leveling, R = Roller Grade, and T = Trowel Grade.
- Can TREMproof 201/60, TREMproof 250GC, and TREMproof 260 be applied in cold weather below 40°F (5°C)?
TREMproof 201/60, TREMproof 250GC and TREMproof 260 may be applied at temperatures below 40°F (5°), however, all substrates must be clean, dry and frost-free. It is Tremco’s best recommendation to apply products when substrate and ambient temperatures are at 40°F (5°) and rising. Please note the following when applying these products at temperatures below 40°F (5°).
- TREMproof 260 must be kept from freezing while in the pail and spray lines. It is also recommended to co-spray to speed the curing process and reduce the potential for washout in the face of inclement weather.
- TREMproof 201/60 and TREMproof 250GC can freeze while in the pail but it will make them both very difficult to apply to the substrate and will significantly increase cure times.
- Do TREMproof 250GC and TREMproof 260 require a protection course?
TREMproof 250GC and TREMproof 260 require a protection course. A TREMDrain drainage course may be an acceptable substitute or used as an add-on. TREMDrain DPI (drainage, protection and insulation board) is designed for use with TREMproof 260 and may be applied while the membrane is still tacky. The semi-rigid nature of the board acts as a protection course for the TREMproof 260 waterproofing membrane.
- What is the advantage of combining a drainage mat with a below-grade waterproofing membrane?
Use of a drainage mat reduces hydrostatic head pressure, affording protection to the membrane and better directs water to the perforated foundation drainage system. Combining a drainage mat with a Tremco below-grade waterproofing membrane typically qualifies for extended warranties.
- What ASTM specification does TREMproof 250GC and TREMproof 201/60 meet?
TREMproof 250GC and TREMproof 201/60 meet or exceed all minimum performance requirements of ASTM C 836.
- How long does the concrete have to be cured before Tremco membranes can be applied?
TREMproof 201/60 requires a minimum of 14 days, (moisture testing required), preferably 28 days. Paraseal, TREMproof 250GC and TREMproof 260 only require 24 hours following the removal of concrete form work.
- What is the typical minimum dry mil thickness requirement for TREMproof 201/60, TREMproof 250GC, and TREMproof 260?
- Can TREMproof 250GC be sprayed?
Spraying of TREMproof 250GC is not recommended. If a sprayable membrane is preferred or required, TREMproof 260 may be a suitable alternative. Please consult with Technical Service.