No. GC37
Calcium Blocker
Multi-surface protectant helps reduce efflorescence and calcium buildup
No. GC37 Calcium Blocker is a water based formula that is designed to help prevent efflorescence, hard water
spots and calcium deposits from forming and also make them easier to be cleaned away. Use full
strength, spraying to apply. If necessary, can be brushed into hard to reach areas. A second coat is
always recommended to ensure full coverage.
Features:
• Safe around pools — will not
change pool’s pH level
• Keeps surfaces looking like
new
• Environmentally safe
• Nonhazardous/nontoxic
• Low VOCs (Volatile Organic
Compounds)
Coverage:
300 square feet
Available Sizes:
No. GC36 Quart, sprayer
No. GC37 Gallon, sprayer
