Refinishing Concrete Walls

While the concrete is damp mix up enough resurfacer to fill any divots.

Refinishing concrete walls.

Other types of sealant work well for filling cracks. Mix concrete resurfacer according to instructions on the bag. Injecting a typical wall crack with an epoxy or urethane resin is done under pressure pushing the material from the inside all the way to the outside. Space fasteners every 6 ft.

The only way to repair foundation wall cracks successfully is by the injection process. Section off work areas no larger than 144 square feet 13 4 square meters. Mix to a thick consistency. Fit the wand with a 25 degree fan tip and hold it 6 to 8 inches from the surface as you clean the concrete with slow even sweeps.

Patch spalled areas photo by ryan benyi. The injection process fills the crack from top to bottom from inside to outside. Use weather stripping or duct tape to prevent the concrete resurfacer from spilling into the joints. Bag of vertical concrete mix from flex c ment.

How to repair spalling concrete walls. When it comes to repairing a spalling concrete wall early detection will go a long way to save you expensive repairs and lots of hard work. Don t leave a depression along the surface of the patch. Some contractors who specialize in vertical work have developed their own wall mixes based on tried and true formulas.

Then trowel the concrete into the crack until it is completely filled. Phil fastens his walls to the floor with construction adhesive and a powder actuated tool pat. To remove mildew or algae use a concrete wash. Follow the manufacturer s instructions to mix water with the quickrete mixture or concrete resurfacer.

It s essential that control joints and expansion joints are maintained. He spaces fasteners every 6 ft. If the cracked area is very large you may want to consider going for a complete concrete replacement as the integrity of the structure may have already been. Vertical concrete mix for resurfacing walls discover the best vertical mixes for skim coating a concrete wall updated august 11 2020.

When insulating concrete basement walls a good idea because concrete basement walls are often cold use rigid foam board insulation if the insulation will come into direct contact with the. And within 6 in. Such walls have been subject to much abuse and become disfigured with hairline cracks holes and chipping. Use a trowel float brush or broom to match the texture of the adjacent concrete finish.

Resurfacing concrete walls can rejuvenate old brittle walls while sustaining the durability of the structure and safeguarding against further damage from any leaks or deterioration. Step 3 add manufactured sealants. If you have a colored concrete retaining wall now is the time to add the coloring to the mixture. Use the drill with the paddle mixer.