Name: IPBC 10% Solution (3-Iodo-2-propynyl Butyl Carbamate)
Brand: Coatingsink
SKU: ipbc-biocide-10pct
Availability: InStock

Question 1

What is the difference between dry-film and wet-film biocides, and why does it matter?

Accepted Answer

Wet-film biocides (e.g., MIT, BIT, OIT) protect the coating while it is stored in the container — they prevent microbial spoilage of the liquid formulation. Dry-film biocides (e.g., IPBC, zinc pyrithione, terbutryn) protect the cured paint film on the substrate against mold, algae, and fungal growth during service life. IPBC is exclusively a dry-film fungicide; it offers no in-can protection and must be paired with a wet-film preservative in waterborne systems.

Question 2

At what dosage should IPBC 10% be added to an exterior wood coating?

Accepted Answer

For exterior wood coatings requiring Class 3 protection (above-ground outdoor exposure without weathering contact), 0.10–0.25% active IPBC is typical. This translates to 1.0–2.5% of the 10% solution in the final formulation. For more demanding Class 4 exposure (above-ground with water contact) a higher loading of 0.25–0.30% active, combined with a co-biocide such as OIT, is recommended.

Carrier	propylene glycol
Appearance	clear yellow liquid
Recommended Dosage	0.1–0.3% active
Fungicidal Efficacy	Aspergillus niger, Penicillium funiculosum
Active Content (IPBC)	10±0.5%

IPBC 10% Solution (3-Iodo-2-propynyl Butyl Carbamate)

Specifications

FAQ

Interested in IPBC 10% Solution (3-Iodo-2-propynyl Butyl Carbamate)?