Cold-Applied Elastomeric Filler Putty Moulding Compound for Pipeline Profiling, AWWA C-214 Compliant

Cold-Applied Elastomeric Profiling Compound for Irregular Pipeline Geometries

TP90# Filler Putty is a cold-applied moulding compound specially formulated to fill gaps, voids, and irregular shapes prior to the application of the CNPETRO wrap tape coating system. Composed of a blend of highly refined saturated hydrocarbons and inorganic fillers, this elastomeric putty is designed to create a smooth, seamless transition surface that ensures optimal tape adhesion and long-term corrosion protection.

Supplied in a convenient 5 kg drum, TP90# Filler Putty is ideal for field application on fittings, weld seams, and other complex geometries where surface irregularity would otherwise compromise the integrity of the protective coating system.

TP90# Filler Putty is formulated with:

• Highly Refined Saturated Hydrocarbons – Provide the elastomeric, cold-flow behavior and permanent flexibility

• Inorganic Fillers – Deliver dimensional stability, void-filling capability, and mechanical reinforcement

This blend creates a compound that remains soft and moldable over time, unlike conventional mastics that harden or shrink.

TP90# Filler Putty is used as an underlay for coatings to fill voids and profile irregular surfaces throughout:

• Elbows (liquid adhesive coated)

• Tees

• Valves

• Flanges

• Couplings

• Weld seams

• Other irregular shapes

The material is specifically designed for cold-applied coating systems, where its elastomeric properties provide excellence in conformability and transition, creating a seamless surface for the subsequent wrap tape coating.

TP90# Filler Putty bonds effectively to all common pipeline substrates and coating types, making it a versatile solution for field joint and fitting protection.

TP90# Filler Putty is designed as a component of the complete CNPETRO cold-applied wrap tape coating system:

The putty is applied first, directly to the prepared substrate, to fill voids and create a smooth profile. The wrap tape system is then applied over the profiled surface, ensuring continuous, void-free coverage.

Values are indicative and shall be confirmed against the specific product data sheet.

1. Surface Preparation: Clean the substrate to remove loose rust, dirt, oil, and contaminants. Surface should be dry and frost-free.

2. Apply Putty: Hand-mold the TP90# Filler Putty into voids, weld seams, and irregular areas. Press firmly to ensure intimate contact with the substrate.

3. Profile the Surface: Smooth the putty to create a gradual transition from the irregular area to the adjacent pipe surface. The goal is a seamless, even profile.

4. Apply Wrap Tape System: Proceed with the CNPETRO viscoelastic inner wrap tape and outer wrap tape per the system application procedure.

5. Inspect: Verify that all voids are filled and the profile is smooth before tape application.

TP90# Filler Putty complies with AWWA C-214 (American Water Works Association standard for cold-applied tape coatings for the exterior of special sections, connections, and fittings used in water pipelines). This compliance ensures the product meets the performance requirements for water pipeline applications, including adhesion, flexibility, and corrosion protection.

• Water pipelines – Fittings, valves, and connections (AWWA C-214 compliant)

• Oil and gas pipelines – Field joints, fittings, and repair areas

• District heating and cooling – Joint protection and profiling

• Industrial piping – Complex geometries and irregular shapes

• Pipeline rehabilitation – Void filling and surface profiling prior to tape application

• Concrete-to-steel transitions – Tank bottom chime edges and similar interfaces

CNPETRO — Protecting pipelines. Advancing performance.

For product data sheets, AWWA C-214 compliance certificates, or technical consultation, please contact our sales team.

Keywords: TP90# filler putty, moulding compound, cold-applied putty, pipeline profiling compound, AWWA C-214, void filling, elastomeric putty, CNPETRO wrap tape system, irregular geometry protection