Denso profiling mastic helps prep irregular shapes for protective tape

When applying protective tape to a pipeline, it can be difficult to create a proper seal on fittings of irregular shape. That’s why Denso North America offers the Denso Profiling Mastic — a cold-applied and self-supporting mastic for creating a smooth profile. This product provides a convenient solution to prepare fittings for a variety of protective tapes.

Denso profiling mastic features

The mastic consists of a petrolatum compound that contains beads of closed cell cellular polymer and additives for flow control. It is often used on fittings such as flanged joints and valves. Typically, the mastic is used along with primer and protective petrolatum or bituminous tapes available from Denso North America.

The mastic offers a number of features such as:

• Easy application in any temperature, ranging from arctic to tropical;
• Free of VOCs;
• Excellent moulding and sealing properties;
• Will adhere to a variety of materials, including PVC, metal, concrete and polyethylene;
• Will not be affected by water, salts or acids;
• Will not harden in cold weather;
• Only requires minimal surface preparation;
• Meets AWWA C217 standards.

More information on Denso profiling mastic

The standard mastic has a maximum service temperature of 60 degrees C (140 degrees F). Denso North America also offers a high temperature mastic for use in temperatures up to 75 degrees C (167 degrees F).

The mastic is supplied in blocks that measure 1.5 by seven by 14 inches, and weigh 1.75 kg (four lbs) each. They are available in cases of six blocks that weigh 10.5 kg (24 lbs). The company provides estimates on its website for the quantity of mastic required for a given fitting type and pipe diameter. For example, a flanged joint with a four-inch diameter will require roughly 1.47 kg (3.25 lbs) of mastic. 

As a leader in corrosion prevention and sealing technology, Denso North America offers a variety of moulding and filler solutions. For more information, visit the company website.

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