Chem-Set RTV4500 100% Silicone Standard Colors Translucent/White

Description

Description

Chem-Set RTV4500is a 100% acetoxy RTV silicone sealant designed for superior durability, weather resistance, and compliance with food-safe standards. Used across industrial, construction, and commercial applications, it offers proven performance in even the harshest environments.

Certified to NSF 51 and FDA 21 CFR 177.2600, RTV4500 is safe for incidental food contact and delivers long-term reliability in both indoor and outdoor conditions. Its non-sag formula makes it ideal for vertical and overhead joints, and its wide operating temperature range makes it a trusted choice from cold storage to high-temp equipment.

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Video Highlights:

• The difference between 100% Silicone and filler-extended formulations

• How to avoid deceptive net fill practices

• A simple DIY Silicone Float Test for verifying quality

• Recommended products for contractors and pros

Ideal for:DIYers, fabricators, contractors, and professionals who want reliable results without failures or callbacks.

Available Colors

Chem-Set RTV4500 is available in 8 core colors designed to blend seamlessly in architectural, countertop, appliance, and metal cladding applications.

Chem-Set RTV4500 shown with available standard colors. 100% RTV silicone with no fillersformulated for high performance in industrial and construction sealing.

Stocked Colors:

• Clear

• White

• Translucent White

• Cameo

• Aluminum

• Almond

• Gray

• Bronze

Key Features & Benefits

• 100% acetoxy RTV silicone solvent-free, no shrinkage

• NSF 51 and FDA 21 CFR 177.2600 compliant

• Mold, mildew, and UV resistant

• Non-sag for overhead and vertical applications

• Maintains performance from -70F to 400F (450F intermittent)

• Excellent 25% joint movement capability

• VOC compliant (23 g/L)

Common Applications

• Commercial kitchen and foodservice sealing

• RV and trailer fabrication

• Walk-in freezer panels

• HVAC systems and ductwork

• Countertop and backsplash installations

• Appliance and equipment bonding

• Bathroom, shower, and tile sealing

• Industrial gasketing and telecom enclosures

Technical Specifications

Property	Test Method	Result
Viscosity	Spindle 7 @ 4rpm	902,000 cps
Skin Formation Time	70F / 50% RH	10 minutes
Density	ASTM D1475	8.5 lbs/gal
Hardness	ASTM C661	25 Shore A
Tensile Strength	ASTM D412	264 psi
Elongation at Break	ASTM D412	500%
Cure Rate	Internal Test	24 hrs @ 1/8 bead
Service Temperature	Internal Test	-70F to 400F (intermittent 450F)
Joint Movement Capability	ASTM C920	25%

Certifications & Compliance

• NSF Standard 51

• FDA 21 CFR 177.2600

• ASTM C920 Class 25, Type S, Grade NS

• TT-S-00230C, TT-S-01543A

• MIL-A-46106A

• UL Recognized

• VOC Compliant

Substrate Compatibility

• Glass, aluminum, steel, stainless

• Marble, granite, ceramic, tile, porcelain

• Wood, fiberglass, PVC, most plastics

• Painted and coated surfaces

Note: Always test unlisted or specialty substrates before full-scale use.

Packaging & Ordering

Packaging Formats:

• 10.2 oz cartridges

• Squeeze tubes

• Bulk: pails, drums, sausages available upon request