3.It is also recommended that on sharp turns a control joint be cut on the sharpest portion of the curve to relieve the pressure in case of ground movement. The pur- pose of this control joint is to allow the concrete to move with the ground rather than forcing hairline cracks in the concrete.

Sealing:

Once the job is finished, you may wish to use a spraying canister and apply a concrete sealer (neither included). Sealers aid the concrete in curing and seal out water and other concrete damaging elements.

When The Job Is Finished:

1.Make sure to unplug the Curb Machine and remove its Slip Form. Then clean the Hopper, Chute, Slip Form, and exterior Body of the Curb Machine thoroughly with water.

2.Clean excess cement off the front edge of the curb, off the grass and other vegeta- tion. If the concrete is stable, the front and back edges of the curb can be filled in with soil.

Caring For The New Curbing:

1.Most cement products require approximately 28 days to totally cure. During the first 24 hours, take extra precaution to protect the cement from damage by children, adults, vandals, and animals. During the first 24 hours, the new curbing will be “soft”. It can be caused to crumble slightly or be scratched if sharp objects come in contact with it or if someone or something puts excessive weight or pressure on it.

2.Some fertilizers and chemicals will stain the new curbing. Alert those using fertilizers and chemicals to avoid spraying on the curbing. If fertilizers and chemicals come in contact with the new curbing, immediately hose it down thoroughly.

3.During the first 24 to 48 hours, avoid direct sprinkler impact on the curbing. After 24 hours, a fine mist will not cause any damage.

SKU 94634

For technical questions, please call 1-800-444-3353

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Harbor Freight Tools 94634 operating instructions Sealing, When The Job Is Finished, Caring For The New Curbing