Our company is in the precast concrete business. We have a problem with the formation of rust on our steel forms stored outside for short periods of time. How can we quickly and cost effectively remove existing rust and prevent the formation of new rust on our idle forms?
Nox-Crete's Kem-Ex-It Plus features a chemically active formulation that easily removes existing rust on steel forms. Once the effervescent action of Kem-Ex-It Plus has stopped, remove the rust residue and any unreacted Kem-Ex-It Plus with water. Once the forms are dry, spray apply a liberal coat of Formgard TJ over all exposed steel surfaces. Formgard TJ forms a tough, wax-like film on the form surface that will prevent the formation of rust on steel forms stored outside for up to 6 months.
Please provide a product recommendation and procedure for removing existing hardened concrete buildup from aluminum forms.
Use Nox-Crete’s Blast-Off or Form Clean to remove existing hardened concrete buildup on aluminum form surfaces. Best results are obtained if the products are spray-applied immediately after form removal while any new buildup is still green.
Our company recently purchased a new set of aluminum forms for use in constructing residential poured wall basements. Please recommend a product and procedure for seasoning our new forms.
All new unseasoned aluminum forms must be seasoned prior to the first use. Before seasoning a new set of aluminum forms, all traces of mill oil must first be removed. To remove, spray a solution of trisodium phosphate (TSP) detergent and water on the form surfaces to be seasoned, scrub with a stiff bristle brush and rinse with water.
A uniform coat of Nox-Crete’s Seasonox should then be applied to the form surfaces. After 20-30 minutes, the form surfaces should be gently rinsed with water to remove any unreacted Seasonox . Prior to use, the forms should be treated with Nox-Crete’s Form Clean and used as the release agent for the first 3-4 pours. After this, Alumi-Con or Alumi-Nox chemically active aluminum form release agents can be used. Note: For cold rolled aluminum forms, apply Seasonox EXT and allow the product to work on the surface for 48 hours before pouring.
We operate several street-type paving machines. Does Nox-Crete have a product we can use to soften existing concrete buildup and keep new buildup from sticking?
We manufacture an equipment maintenance product called Deactivator, available in both petroleum- and water-based formulations. Spraying existing concrete buildup with Deactivator will soften it over time, allowing it to be easily removed with a pressure washer.
As a maintenance product, Deactivator should be applied to paving machines at the end of each work day. Deactivator will penetrate and chemically deactivate the set of fresh buildup. In addition, all surfaces treated with Deactivator will be protected from the adhesion of any new concrete buildup.
chemical solutions to concrete problems
