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Although barium sulfate is almost completely inert, zinc sulfide degrades upon exposure to UV light, leading to darkening of the pigment. The severity of this UV reaction is dependent on a combination of two factors; how much zinc sulfide makes up the pigments formulation, and its total accumulated UV exposure. Depending on these factors the pigment itself can vary in shade over time, ranging from pure white all the way to grey or even black. To suppress this effect, a dopant may be used, such as a small amount of cobalt salts, which would be added to the formulation. This process creates cobalt-doped zinc sulfide. The cobalt salts help to stabilize zinc sulfide so it will not have as severe a reaction to UV exposure.

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  • Trench drains, also known as linear drains or channel drains, are designed to collect and redirect surface water from paved surfaces such as driveways, walkways, and parking lots. The effectiveness of these systems is largely dependent on the design and type of grate used. A 4% slope in trench drain grates refers to the gradient that allows water to flow toward the drain efficiently, preventing pooling or stagnation in high-traffic areas.


  • Sammenfattende tilbyder stålristgulve en række fordele, herunder styrke, sikkerhed, holdbarhed og bæredygtighed. Deres alsidighed gør dem til en fremragende valg for enhver, der ønsker et pålideligt og effektivt gulv, der kan stå imod tidens tand og de udfordringer, der følger med forskellige arbejdspladser. Med stålristgulve får man ikke bare et gulv, men en langvarig investering i kvalitet og sikkerhed.