RT400P – HEAT BLOCKING COMPOUND (12 OZ)

This reusable heat-blocking putty wraps around components near a braze joint to protect them from torch heat — things like service valves, TXV bulbs, or nearby copper connections you don’t want to re-melt. Withstands direct heat up to 2000°F and can be reused multiple times.

Specs: 12 oz, reusable putty, withstands 2000°F direct heat, moldable

Replaces: RT400P — Refrigeration Technologies “Wet Rag”

Fits: Any brazing application where nearby components need heat protection. Common in HVAC compressor replacements, TXV installations, and lineset repairs.

In stock at Open To Public HVAC Parts in Dallas. Call or text (214) 340-9421 for pricing and availability.

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• WETRAG

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.