Frequently Asked Questions

Featured Questions

What is with this picture in the banner at the top of the page?

While this question is obviously not technical, informational or relevant, you will not be anywhere near the first person to ask it. Sometimes taking pictures of pigmented concrete, especially at certain angles, provides our expert photography crew with what can only be thought of as impossible. In this photo, note the extreme texturing of the contours and the sharpness of perspective… it leaves the onlooker with a feeling of, “yes, that is concrete”.

What can’t Renew Coat do?

Our running statement that Lambco® Renew Coat is the ultimate resurfacing compound is not one that we created, but one that we adopted from the many extreme advocates of its near-otherworldly performance characteristics. The product may be the most ‘off-label’ (on applications not intended by Lambert Corporation and its technical application information) used product in the building materials world. While we do not warrant, support or stipulate some of these many unorthodox functions under which we have seen the product utilized, we have been told it always works.

I have been told liquid pigment costs less than dry… is that correct?

No; the answer is a screaming no. If you believe this, or if someone has told you this, then you have been deceived. The only statement that it costs slightly less can be made in terms of weight, however, it takes liquid pigment 180 to 300 percent more weight to match a dry pigment coloration, and thus will cost you tremendous money. Not only does it cost more, it is more difficult to dispatch, creates a problematic disposal process, and can negatively alter the mix on a chemical base. Lambert Corporation’s dry pigment powders have no negative altering chemicals to damage the precise components in your system.

Are all of Lambert Corporation products biodegradable?

Biodegradable is one of the many superfluous buzzwords that the building materials industry uses loosely, and incoherently at times, to describe products that have some form of differentiation to make them more friendly to the environment. In nearly all applications, there is no criteria upon which that word is used, and no standard of testing. The word biodegradable is defined, by Mirriam-Webster, as capable of being broken down especially into innocuous products by the action of living things. Because of the word capable, most plastics and metals fall into the category of biodegradable. Given a lack of specifics when using that word in the building materials industry, the answer will almost always be yes.

Why can’t I just trowel in the pigment on top of the cementitious surface?

For your own sake, please don’t do this… ever. With excessively application knowledge it can be done successfully, but we would never support or advocate that type of application. It almost never works, and it is illogical. The inexpensive cost of dry iron oxide pigments make the risk of misapplication and complete removal/replacement of the concrete completely not worth it. It also produces uneven surface coloring, eventually leading to a very unhappy project owner.

What curing and/or sealing compound should I use over pigmented concrete or pigmented cementitious mixes?

Everyone manufacturer in the pigment world makes some form of follow up product, that perform in a nearly identical way, producing nearly identical results. However, the actual answer to this question really depends on aesthetics, as this will alter the finished surface. Do not use standard economical curing processes, such as dissipating curing compounds, silicate-based densifiers, water misting/spraying/vaporizing or burlap/plastic sheeting. The best method is no curing as this prevents that trapping of water or creation of visible build-up that can destroy the entire intent. For uniformity, stick with pigmented curing and sealing compounds such as our Lambco® Colorgard.

How do I determine how much pigment is needed in my mix?

This is actually quite an easy process based on this formula: Amount of pigment for color multiplied the amount of cement in the mix divided by 94 (ninety-four), which can then be multiplied by the number of number of units in a yard and then number of yards in a truck… OK, maybe this formula isn’t easy, that’s why we made a chart for it. See ‘From Pigment Chart to the Ground (A Guide to Proper Pigment Dosage)’.

What are the benefits and deficits of using pigmented surface hardeners versus integral pigmentation systems?

This answer is, by no means, a comprehensive list, but it will help give you a breakdown of which product makes the most sense for your application. Firstly, integral pigment versus surfaces hardener pigmentation, is completely through, allowing damage to not display gray concrete beneath. Integral pigment is also significantly easier to apply and less problematic; pigment is dropped in the mixer at batching and then allowed to blend, whereas hardeners have complex application process. In defense of hardeners, the can provide a more dense top layer and have the capacity to yield increased toughness and/or slip resistance.

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