CURING TIME
Curing Time for Dura-Rubber
Dura-Rubber becomes dry to the touch within a few hours and is waterproof at that stage. However, full curing is a crucial process where the rubber completely bonds into a single, durable membrane. This takes 7-10 days, depending on temperature and humidity (see details below).
⚠️ Important Warning
Do not expose the coating to chemicals or continuous water saturation until vulcanization is complete. If the product is not fully cured and water is added too soon, small gas bubbles may form, which can affect both the appearance and long-term durability of the coating.
Environmental Factors That Affect Curing
?️ Temperature Considerations
• Apply when temperatures are rising, ideally several hours before peak temperature (usually late afternoon).
• Always check the surface temperature of the material being coated, not just the air temperature.
• Avoid applying in cooling conditions (e.g., late evening), as high humidity combined with dropping temperatures can trap moisture, leading to surface staining and adhesion issues.
? Humidity Levels
• Optimal Relative Humidity (RH): 40-50% or lower.
• High RH (70%+): Slows curing but does not prevent application.
• RH above 85%: Not recommended—the coating may remain gummy and fail to solidify properly.
For application-specific questions, contact us by phone, email, or live chat—we’re here to help!