High Heat Resistant Muffler Silver Powder Coating

Surface Finish Options Overview

HIGH HEAT RESISTANT - MUFFLER SILVER

WILL WITHSTAND TEMPERATURES UP TO - 1200°F

HIGH HEAT RESISTANT powders are ideal for BBQ’s, industrial heaters, chimney stacks, engine casings, engine manifolds, mufflers and light fixtures. 

DESCRIPTION This true high-temperature silicone system was developed from a proprietary blend of resins and pigments to provide service up to 1200°F (649°C). It is designed to be a smooth coating for steel substrates. 

Product Benefits • Enhanced charging and handling characteristics • Thinner film builds • Provides excellent flow and leveling over a wide range of film thickness • Great performance at 1000°F (538°C) • Excellent UV resistance for outdoor use • Passed the full battery of corrosion performance tests for automotive applications • Designed to be more compatible and to reduce cross contamination with other coatings

SPECIFICATIONS

Cure cycle  

20 minutes at 375°F(191°C) 15 minutes at 400°F(204°C) 10 minutes at 425°F(218°C)  5 minutes at 450°F(232°C) 

Specific Gravity 1.73 +\-0.05 

Theoretical coverage for 1 mil. 112 ft² per pound 

Film builds between. 0.80 and 2.50 mils 

Recommended at 1.60 mils Heavier film builds are not recommended. 

TYPICAL PROPERTIESAdhesion(ASTM D3359) ..............................................5B Gloss at 60°(ASTM D523)..................................1.0 – 4.0 Impact Resistance(ASTM D2794-90)...............120D/60R Pencil Hardness(ASTM D3363) >2H 

PERFORMANCE TESTINGContinuous testing at 1000°F (538°C) shows thIs product retains gloss, color and physical integrity at this service temperature. Testing indicates good film integrity after limited exposure to temperature at 1400°F(760°C). This formula has tested to the specifications of automotive and other equipment manufacturers

FAQ

1. What is Powder Coating?

Powder coating is a dry finishing process used to apply a protective and decorative coating on metal or other surfaces. Instead of using liquid paint, fine powder particles (usually made of polyester, epoxy, or hybrid resins) are electrostatically charged and sprayed onto a conductive surface. The coated object is then baked in an oven, where the powder melts, flows, and cures into a smooth, durable finish.

Key features:

Durable, hard finish

Resistant to scratches, corrosion, and UV

Environmentally friendly (no VOCs)

2. Benefits of Powder Coating

Powder coating offers several advantages over traditional liquid painting:

Durability: Resistant to chipping, scratching, fading, and wear.

Corrosion Protection: Provides excellent protection against rust and chemicals.

Environmentally Friendly: No volatile organic compounds (VOCs) and minimal waste.

Efficiency: Overspray can be collected and reused, up to 99% material utilization.

Uniform Finish: Smooth, even coating without runs or drips.

Cost-Effective: Single-coat systems can achieve high film thickness, reducing labor and energy.

Aesthetic Variety: Wide range of colors, textures, and effects.

3. What Temperature to Cure Powder Coating

The curing temperature depends on the type of powder used:

Epoxy powder: ~160–200°C (320–392°F)

Polyester powder: ~180–210°C (356–410°F)

Hybrid (Epoxy-Polyester) powder: ~180–200°C (356–392°F)

Typical curing time: 10–20 minutes depending on thickness and oven type.

Always follow the powder manufacturer’s specifications for best results.

4. Process for Powder Coating

The powder coating process usually follows these steps:

Surface Preparation:

Clean the surface thoroughly (remove oil, grease, rust, or dirt)

Methods: chemical cleaning, sandblasting, or phosphating

Pre-Treatment:

Apply a conversion coating or primer if needed to improve adhesion

Powder Application:

Spray the powder using an electrostatic spray gun or fluidized bed

Curing:

Bake the coated object in an oven at the recommended temperature for the powder type

The powder melts and forms a continuous, smooth film

Cooling & Inspection:

Let the coated item cool

Inspect for defects, uniform coverage, and desired thickness

5. How to Spray Powder Coat

Equipment Needed:

Electrostatic spray gun

Compressed air supply

Powder feed hopper or container

Grounding of the object

Steps:

Ground the object: Ensures the charged powder is attracted to the surface.

Spray evenly: Hold the gun 6–12 inches from the surface, moving in smooth, overlapping strokes.

Apply sufficient powder: Ensure full coverage without excessive buildup.

Cure immediately: Transfer the sprayed item to the curing oven to fuse the powder into a solid coating.

Tips:

Maintain consistent speed and distance while spraying.

Use proper ventilation to reduce airborne powder accumulation.

Test a small area to check film thickness and color before full application.