Red Devil Industrial Grade RTV 100% Silicone Sealant - Weather

In this review of the Red Devil 08165I RD PRO 100% Silicone Sealant, the bottom line is simple: this is a dependable, weather-resistant industrial grade sealant suited for maintenance pros and handy homeowners who need a long-lasting, flexible seal on exterior and interior non-porous surfaces. The reviewer found the product stands out for its consistent adhesion and durability across metal, glass, ceramic and painted surfaces, and appreciates the low odor, USDA recognition and NSF listing for projects where cleanliness and indoor air quality matter.

Key Features

• High-performance formula: The 100% RTV silicone compound provides a strong, durable seal designed for maintenance and OEM applications in challenging weather conditions.
• Wide surface compatibility: It adheres well to most metals, painted surfaces, plastics, ceramic tile, porcelain, glass, marble, fiberglass and non-oily woods for versatile use around the home or jobsite.
• Weather resistance: Superior flexibility and vibration resistance help the sealant resist cracking, peeling or shrinking for a long-lasting seal outdoors.
• Low odor and compliant: The low odor, VOC-compliant formula is USDA recognized and NSF listed, which is helpful for indoor jobs and areas near food prep.
• Easy cleanup and storage: Solvent cleanup is possible and the supplied cap helps preserve unused product between jobs for better value.

Who It's For

The sealant is aimed at maintenance technicians, contractors, and DIYers who need a reliable, all-purpose silicone for windows, doors, gutters, showers, tubs, sinks and similar installations where a durable, weather-resistant bead is required. Its adhesion to many non-porous materials and the 50 year warranty make it suitable for long-term exterior and interior sealing tasks.

Those working exclusively with porous, oily woods or who require a colored matching caulk may want to check compatibility or look for a product with color variety; a few customers noted mixed opinions on color availability. For high-temperature engine or specialty chemical exposures, verify compatibility with manufacturer guidance.

Pros & Cons

Pros

• Excellent adhesion to a wide range of non-porous surfaces for flexible applications.
• Weather-resistant formula that will not crack, shrink or peel with normal exterior exposure.
• Low odor, VOC-compliant and USDA recognized, making indoor use more pleasant and safe.

Cons

• Color selection drew mixed feedback from customers who found it hard to match or locate a specific color option.

Specifications

Brand	Red Devil
Type	100% RTV silicone sealant
Package	10.1 oz tube, 12-pack
Applications	Windows, doors, showers, tubs, gutters, sinks, countertops, tiles
Compatibility	Metals, painted surfaces, plastics, ceramic tile, porcelain, glass, marble, fiberglass, non-oily wood
Cleanup	Solvent clean up
Warranty	50 year warranty

Our Verdict

The Red Devil 100% Silicone RTV is a solid choice for anyone needing a durable, weather-resistant sealant for a range of non-porous surfaces. Its strong adhesion, flexibility and low odor make it good value for maintenance work and household repairs, though buyers should confirm color options if an exact match is important.

Frequently Asked Questions

How long does it take to cure?
Customers report it can cure in about 24 hours under normal conditions, though curing time depends on temperature and humidity.

Can it be used on metal and glass?
Yes, the formula adheres well to most metals and glass as well as many other non-porous surfaces.

Is this safe for indoor use?
The sealant is low odor, VOC-compliant, USDA recognized and NSF listed, making it suitable for many indoor applications.