DC315, developed by International Fireproof Technology Inc. (IFTI), is a leading intumescent coating designed to provide thermal and ignition barrier protection over spray polyurethane foam (SPF). Proper application is crucial to meet building codes and ensure the safety and longevity of the insulation system. This DC315 Application Guide outlines the essential steps and considerations for applying DC315 effectively.
Ensure Code Compliance and Optimal Fire Protection with Our DC315 Application Guide
- Surface Preparation
Before application, ensure that the SPF surface is clean, dry, and free from contaminants such as dust, oil, or debris. The foam should be fully cured and stable. If applying over existing coatings or in unique environments like high humidity or cold storage, consult IFTI for specific instructions.
- Mixing the Product
DC315 is a single-component, water-based coating. However, it’s essential to mix the product thoroughly before application to ensure uniform consistency. Use a mechanical mixer at low speed to avoid introducing air bubbles.
- Application Methods
DC315 can be applied using airless spray equipment, a brush, or a roller with a medium nap. For large areas, airless spraying is recommended for efficiency and uniform coverage. Ensure that the equipment is clean and suitable for water-based coatings.
- Environmental Conditions
Apply DC315 when ambient and surface temperatures are between 50 and 90 degrees Fahrenheit, with relative humidity below 85%. Avoid application in conditions that may lead to condensation or poor drying.
- Wet Film Thickness (WFT) and Coverage
Achieving the correct wet film thickness is vital for the coating’s performance:
- Thermal Barrier: Apply at 14-18 mils WFT (wet film thickness), which equates to approximately 115 square feet per gallon.
- Ignition Barrier: Apply at 4-6 mils WFT, covering about 400 square feet per gallon. Use a wet film thickness gauge to measure the coating immediately after application. If a higher thickness is required, apply multiple coats, allowing a minimum of two hours drying time between coats.
- Drying and Curing
DC315 dries to the touch in 1-2 hours under standard conditions (77F and 50% RH). Allow 2-4 hours before recoating if necessary. Ensure adequate ventilation during and after application to facilitate proper curing.
Quality Assurance and Documentation
Maintain thorough records of the application process:
- Job Work Records: Use IFTI’s Job Work Record forms to document application details, including environmental conditions, WFT measurements, and batch numbers.
- Certified Applicator Program: Consider enrolling in IFTI’s Certified Applicator Program to enhance your credibility and ensure adherence to best practices.
- Final Inspection
After the coating has fully cured, conduct a thorough inspection to verify uniform coverage and adherence to specified thicknesses. Address any deficiencies promptly to maintain compliance with fire safety regulations.
Need more information on DC315 application or any other IFTI fireproofing products? Get in touch and we’ll be happy to help!