How to Apply a Hi-Temp Lab Metal

Hi-Temp Lab-Metal is a metal filler that is manufactured by Alvin Products, a specialty manufacturer of repair products. This putty is an improved version of its manufacturer's signature product, Lab-Metal, and as its name suggests, it withstands high temperatures. You can use Hi-Temp Lab-Metal to fill holes and dents or seal cracks in or around radiators, heating ducts, auto parts, grills, and ovens. Depending on the size of the crack or dent you need to fill, you can apply this product as you would putty or caulk, or you can thin it and apply it with a brush.

Instructions

Applying Straight Filler

1

Prepare the surface to be filled by roughening it with sandpaper or steel wool. Make sure it is clean and dry.

2

Add a capful or two of Lab-Solvent to your Hi-Temp Lab-Metal if it appears stiff. Stir until the putty is smooth.

3

Apply the filler to the dent or crack and smooth it with your putty knife, trowel, or squeegee; if the dent is deep apply an initial layer no more than 1/4-inch thick. Remove any excess putty with a putty knife before it sets.

4

Seal a joint or seal around a duct by loading the Hi-Temp Lab-Metal into the chamber of a refillable caulking gun, squeezing the trigger and applying a bead of Hi-Tech Lab-Metal as you move the nozzle of the caulking gun across the joint. Remove any excess putty with a putty knife before it sets.

5

Allow the filler to dry for 24 hours. Apply the next layer necessary to fill a deep dent or hole.

6

Heat-cure the filled surface by exposing it to a source of 425-degree Fahrenheit heat such as a heater or heat gun for at least an hour before refinishing the surface. Do not heat-cure initial layers of filler in surfaces that you intend to continue to fill with additional layers.

Applying Thinned Filler

7

Prepare the surface to be filled by roughening it with sandpaper, a wire brush, or steel wool. Make sure it is clean and dry and free of rust, paint, oil, and similar materials before applying putty.

8

Thin your Hi-Temp Lab-Metal with Lab-Solvent and stir until it reaches the consistency of regular paint.

9

Using light brush strokes, apply the thinned filler with a paint brush.

10

Dip the brush into Lab-Solvent from time to time to keep the bristles clean and soft.

11

Allow the surface to air-dry for 24 hours. Heat-cure the filled surface by exposing it to a source of 425-degree Fahrenheit heat such as a heater or heat gun for at least an hour before refinishing the surface. Do not heat-cure initial layers of filler in surfaces that you intend to continue to fill with additional layers.