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Project Overview and Material Selection

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Waterproofing Block at the Bruneau Observatory | PRO Painting Tips

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What happens here

Begin by reviewing the project scope, which involves sealing cinder blocks on both the interior and exterior of the Idaho State Observatory. The objective is to waterproof the blocks, protect them from salt, chemicals, and UV radiation, while preserving their natural appearance. The sealer chosen is a silicone-based emulsion that offers these protective qualities without changing the block's color or creating a sheen. It's crucial to understand that once a silicone-based sealer is applied, no other coating (like a solid color stain) can be applied over it, as paint will not adhere to silicone.

Goal: This step introduces the project's goal of sealing observatory cinder blocks for waterproofing and protection, highlighting the use of a silicone-based sealer that maintains a natural look but prevents future top-coating.

Tools and materials

  • Valspar Protective Sealer Natural Look — Waterproofing, salt/chemical protection, UV protection for cinder blocks

What they say

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[Music] foreign [Music] so we're out here today um at the new Idaho State Observatory the brutal sand dunes so we're going to be sealing some block today so it's pretty cool project we've got um really cool we're going to show you the Dome that rotates and opens they're gonna be mounting a state-of-the-art telescope in this um in this building so we're going to be sealing some block today uh inside and outside to make this thing last they wanted something on the outside of this block to seal it to really waterproof it and then protect it from Salt and chemicals so any F4 essence or salts up wanted to protect this natural so and so it looks natural like this we don't want any Sheen to it but I'm going to be using a silicone-based um Emulsion coating to put on here to waterproof it and it's also going to give it some UV protection but it's not going to change the color of itself and being silicone base one thing you need to know is once you put it on there you can't top coat it with anything if you wanted to use a solid color stain down the road you're not going to be able to

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