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Sealer helps seal items that need to be sealed that have trouble being sealed. keeps it sealed for a very long time. For example, if your hobby was building furniture, and you had just completed construction of your latest project, a wooden chair, you would then need to finish the item by staining or painting etc. But first you would paint a sealer coating, to prevent the wood from soaking up the finish coating and perhaps, expanding at the surface, causing the smoothly sanded surface to become rough to the touch. This initial coating " seals " the wooden surface, in preparation for the final coating that you decide to use.

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15y ago
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10y ago

To protect against contaminents being absorbed such as oil, chemicals & dirt. Reduce algae-mildew growth (if water isn't saturating the surface as long, then mold spores can't grow as easily) as well as help prevent freeze-thaw cycle erosion in outdoor cold weather climate. Freeze-thaw happens when water freezes overnight in the pores of the concrete or masonry then warms up during the day. This constant contraction and expansion of the substrate helps crack up the surface over time. A penetrating sealer is recommended for the above scenarios (which assume outdoor use) vs topical sealants that tend to wear away easier.

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10y ago

can sealer-is an equipment used to seal tin cans with its first and second operation rolls
can sealer function

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Q: What is can sealer?
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