Buying Curing Compound: Cost, Storage and Shelf Life
Price, pack size and storage all affect what you really pay. Water-based products must be kept above 40°F (4°C) and must not freeze, so storage matters as much as the price on the shelf.
Guides in this section
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Cost
Price per gallon and per square foot, checked at retailers.
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Shelf life and storage
How long it keeps, freezing and what to do with leftovers.
Work out how much you need first
The cost of a job is the price per gallon times the gallons the slab needs. Coverage varies by product, from about 200 ft² per gallon on many data sheets to 400 on smooth floors for some dissipating resins. At 200 ft² per gallon, 1,000 ft² takes one 5-gallon pail per coat. Use the coverage calculator with your product's rate before comparing prices.
What changes the price
- Type. Cure and seal and C1315 products usually cost more than basic C309 curing compounds.
- Solids. Higher solids means more film per gallon, and often a higher price.
- Pack size. Pails and drums usually cost less per gallon than single gallons.
- Where you buy. Big-box stores carry a few consumer brands; supply houses carry contractor lines and can order the rest. See Home Depot vs Lowe's vs a supply house.
The cost guide explains how to compare prices without guessing.
Storage rules that save money
- Keep water-based products above 40°F (4°C). Once frozen, they are ruined, and some DOTs bar carryover lots that have frozen.
- Close pails tight and store them out of sun.
- Check the date on the pail against the shelf life on the data sheet before you use leftovers.
More detail is in shelf life and storage.