Hi-Temp Lab-metal brochure (PDF)
Permanent repair compound
- withstands 1000ºF
Hi-Temp Lab-metal is ready-to-use right from the can. Developed for difficult repairs
subject to excessive heat, Hi-Temp Lab-metal withstands temperatures as high as 1000ºF.
See Our Product Demonstration
Easy to use
Hi-Temp Lab-metal is applied directly from the can with a putty knife
or similar tool. No two-component mixing or measuring is necessary. Many applications may
be made from a single can. After each use, to prevent Hi-Temp Lab-metal from hardening in
the can, pour Lab-solvent over the remaining Hi-Temp Lab-metal contents, then cover
tightly. (Stir the solvent into the Hi-Temp Lab-metal before using again). Lab-solvent is
also used to thin Hi-Temp Lab-metal for brush-on applications.
Hi-Temp Lab-metal adheres to most metals. Once hardened, it can be
machined, ground, filed, and sanded. Buffed to a satin smooth finish, Hi-Temp Lab-metal
leaves an undetectable repair. Hi-Temp Lab-metal is impervious to the attack of rust, rot,
and mildew. It is not affected by varying climatic conditions, and the hardened metal can
be painted over -- even powder-coated.
Hi-Temp Lab-metal must be stirred thoroughly before use. No additive is
needed; the repair compound hardens upon exposure to air. Hi-Temp Lab-metal is a viscous
but easily spreadable paste. Upon opening the can, if the Hi-Temp Lab-metal appears stiff,
stir in a capful or two of Lab-solvent to restore the product to its appropriate
consistency. For any application, the surface must be clean and dry; free of paint, oil,
dirt, and any extraneous materials. Roughening the surface provides superior adhesion.
Hi-Temp Lab-metal's shelf life is one year in factory-sealed cans. Store in a cool place.
See MSDS for safe handling.
Hi-Temp Lab-metal may be applied with a putty knife, spatula, trowel,
caulking gun, or rubber squeegee. When filling deep holes or cavities, the putty should be
applied in thin layers, less than 1/4" thick. Allow each layer to dry for at least 24
hours. Dry time may be
force curing, infrared lamps.This depends on air temp,
type of metal.
To apply Hi-Temp Lab-metal with a paint brush, it must be thinned to
paint consistency with Lab-solvent, then applied with light brush strokes; not worked over
as with paint. Dipping the brush into Lab-solvent periodically will keep the bristles free
and prevent clogging.
Depth of application determines drying time; hardening occurs as the
diluent evaporates. The application must air dry for at least 24
hours, or until the
product has hardened to a metal state.
In order for Hi-Temp Lab-metal to completly harden after a 24 hour air dry time, it must be exposed to a minimum temperature of 425ºF for a period of at least one hour depending on thickness of application. (The curing process may be achieved by a
more gradual "heat-up", as in the repair of an industrial oven or exhaust. In this case, as
the oven is heating, the Hi-Temp Lab-metal repair is curing.)
Hi-Temp Lab-metal is recommended where original Lab-metal may not
withstand the extreme heat. Originally developed due to requests from the foundry
industry, industries such as metalworking, powder coating, welding, fabricating, heating,
construction, auto repair, die casting, mold refinishing, and sheet metal production and
finishing have found uses for Hi-Temp Lab-metal. It successfully repairs:
- foundry core boxes
- duct work
- mufflers, exhaust systems, engines
- wood and coal burning stoves, grills, industrial ovens
- dented metal, prior to powder-coating -- when Lab-metal cannot be
used due to the extreme temperatures.
||Excellent adhesion to clean, dry
surfaces of most metals. Hardens upon exposure to air. Hi-Temp Lab-metal will not bond two
parts together; requires air to dry. Heat cure according to the directions on the can.
||One cubic inch: 28.9 grams or 1.02
||When heat cured, withstands
temperatures as high as 1000ºF.
||Not affected by mild acids;
gasoline; petroleum; petroleum solvents; oil, or L.P. gas.
||Dry and hard material will not
||Est. 1-2 BTU / sq. ft. / hour / ºF
||Dependent upon thickness of
application. Allow to harden for at least 24 hrs., then heat harden at 425ºF for 1 hr.
||One year in factory-sealed can.
(Add Lab-solvent to extend storage-time). Store in cool place.