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Stop It® Pipe Repair System

Load Transfer Filler 5 (LTF5)

Mechanical Reinforcement Products

Load Transfer Filler 5 (LTF5)

LTF5 is a low-cost, customized composite system to repair and reinforce mechanical systems, structures and piping. Furnished factory-impregnated with our proprietary urethane resin, it’s odorless, non-flammable, ready to apply, and cures by way of a chemical reaction with water.

Engineered for your specific situation and cures in wet conditions and underwater, can be applied over a wide temperature range and is heat-resistant to 250°F


Supplied in 170 gram kits; parts A and B packaged separately. Available in kits including spatula, mixing board and gloves

How It Works

The epoxy composite can be used as a primary pressure sealing component when additional backing (overwrap) is installed. The high compressive and flexural strengths and high hardness enable load transfer in multiple component repairs.

Pot Life: 5 minutes at 68°F (20°C)
Recoat Time: 20 minutes
Full Mechanical Strength: 30 minutes
Full Chemical Resistance: 3 hours
Tensile Shear Adhesion: 2,550 psi
Compressive Strength: 15,693 psi
(ASTM D 685)
Flexural Yield Strength: 7,000 psi
(ASTM 790)
Barcol Hardness: 85 (ASTM D 785)
Pressure Retention: 400 psi for leaks less
than 0.125” od with STOP IT® overwrap. 500 psi
for voids up to 1.0” od (with internal
supporting screen and composite overwrap).
Temperature/Heat Resistance: From -20°F
up to 250°F (-29°C to 121ºC) – continuous.
Wet exposures 140°F; spill/splash 212°F.
Multilayer Build-Up: Multiple layers can be
coated within the recoat window to achieve
greater thickness. If additional coats are to
be applied outside of this window, coating
surfaces should be roughened before
application of subsequent layers.

Part NoDescriptionCase QuantityCase Wt. LBS
Load Transfer Filler 5 (LTF5)
LTF5Load Transfer Filler 5 (LTF5)10
LTF5KLoad Transfer Filler 5 (LTF5) Kit11

Working (Pot) Life 45 minutes at 25°C (77°F) Mix Ratio Factory ratioed
Application Temps 0 – 99°C (33 – 211°F) Service Temps -40 – 121°C (-40 – 250°F)
Cure Time (Dry to Touch) 60 – 90 min at 25°C (77°F) Full Cure 2 days at 25°C (77°F)
Usual Packaging Factory ratioed Shelf Life 1 year in sealed container
Bond Strength Concrete – 225 PSI, Metals – 1000 PSI, Wood – 500 PSI, Plastic – 350 PSI

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