DP 503 is recommended on a variety of HVAC substrates including galvanized steel, stainless steel, aluminum, wood, fiberglass, PVC, PVS, and painted substrates.
DP 503 is an excellent sealant and adhesive for many commercial, industrial, and construction applications where a long-term, permanently flexible seal/bond is required.
DP 503 may also be used for high temperature gasketing applications, fireplace manufacturing, appliance manufacturing and sealing heating elements.
DP 503 will not sag or slump and can be applied to both vertical and overhead substrates.
Features & Benefits
• LEED V4 Qualified
• High Temperature
• Non-Slump, Non-Sag
• Mold and Mildew Resistant
• Low VOC
• Weather and UV Resistant
• Flexible, will not shrink or crack
• Indoor and Outdoor Usage
Meets or Exceeds
• ASTM C920 Type S, Grade NS, Class 25,
Use NT, G, O
• ASTM G26
• TT-S 001543A, TT-S 00230C Type II
• FDA Regulation No. 21 CFR177.2600
• NSF Standard 51
• UL Recognized
• MIL-46106 TYPE 1
Colors: High Temp. Red
Base: 100% RTV Silicone
Viscosity: Approx. 950,000 to 1,000,000 cps
Skinning Time: Approx. 10 minutes at 70°F, 50% RH
Shore A Hardness: 25
Tensile Strength: 265 psi
Gun Grade: Pass, Non-Slump
QUV Testing (ASTM G26): Pass 10,000 hours
Application Temperature: -35°F to 150°F
Storage: Store in original unopened container below 90°F. High humidity and high heat can reduce shelf life.
Service Temperature: -50°F to 500°F. Intermittent Temperatures up to 600°F.
Flammability: Non-flammable wet or dry
Flash Point: No flash to boiling
Shelf Life: One Year (unopened container)
Cure Time: 24 hours at 1/8” bead, depending on temperature, humidity, and application
Clean Up: Uncured DP 503 can be cleaned with mineral spirits or denatured alcohol
Painting: DP 503 is not paintable
Packaging: 10 fl. oz. tubes
VOC: 23 g/l
General Insulation Company Inc. is an insulation supplier / insulation distributor that stocks a wide variety of industrial and commercial adhesives and sealants for the construction market.