Silicone: Thin with mineral spirits, sheet pour. Wheelchair assist threshold ramp.

A unique design wheelchair assist device for traversing a doorway threshold. DIY the entire project. Total cost, about 20 USD.

Volume of a cylinder=(3.14)r(squared)h, add+10% for waste
Ratio of silicone to cornstarch=10:1, gives about a 1 hour cure.

White spirit (UK) or mineral spirits (US, Canada), also known as mineral turpentine (AU/NZ), turpentine substitute, and petroleum spirits, is a petroleum-derived clear liquid used as a common organic solvent in painting. There are also terms for specific kinds of mineral spirits, including Stoddard solvent and solvent naphtha (petroleum). Mineral spirits are often used as a paint thinner, or as a component thereof, though paint thinner is a broader category of solvent.

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