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The Best Industrial Sealants

Your guide to this review today is by Cleaning expert Ben Murray
Published on
August 8th, 2019

Expert BioExpert Bio

Ben’s formal training and certifications in cleaning include the ASD (Advanced Structural Drying), AMRT (Applied Microbial Remediation Technician),
WRT (Water restoration technician), CCT (Carpet Cleaning technician), and bio hazard cleanup, as well as several other certifications from the IICRC. Ben has managed teams involved in cleaning projects around the United States. Ben’s passion for cleaning dates all the way back to keeping his rugby gear tidy while a young lad. Ben holds an undergraduate degree from Oxford, a Master’s degree from Oxford, and a mountain of hands on experience at the school of hard knocks.

The Cleaning Institute

Industrial sealants are extremely durable and can be used in a variety of ways for different types of projects and repairs that need to be made. They’re often compatible with many materials, which allows them to be versatile and reliable. Our team at The Cleaning Institute has reviewed multiple industrial sealants that are currently on the market to ensure our consumers can have a few recommendations to choose from when looking for a reliable product to use.

Our top choice is the Millrose 76003 Monster Heavy-Duty Industrial Grade with PTFE, because it’s formulated with PTFE resin and offers a secure grip. The Red Devil Series 08162I RD Pro Industrial Grade RTV 100% Silicone Sealant is our honorable mention and stands out for its superior adhesion and ability to resist mildew. For our green pick, our The Cleaning Institute team selected the Design Polymerics 1030 Water Base Duct Mastic Sealant, because it can be used to permanently seal sheet metal and flexible duct system joints.

Testing Categories

At The Cleaning Institute, using multiple testing categories allows us to award points to each product we review to determine its overall value and quality. When it came to reviewing industrial sealants, we chose to use Packaging, Efficiency, and Application for our main categories to ensure that we could narrow down our top choices for consumers to choose from.

Packaging – We took a look at the packaging to determine if the industrial sealant came in a convenient bottle or tube.

Efficiency – The results that each sealant provided was an additional consideration to ensure that it served its purpose and worked well.

Application – Our team tested each product by applying it to multiple surfaces to determine how easy and convenient it was to use.

Top Pick

Millrose 76003 Monster
Heavy-Duty Industrial
Grade with PTFE

The Millrose Monster Heavy-Duty Industrial Grade sealant is inert and compatible with different types of material. It can be used on all metals, ABS, PVC, and CPVC for added versatility.

Price Check

Most notable upside: This industrial pipe thread sealant consists of recurring tetrafluoroethylene monomers with a formula of (CF2-CF2). The product is non-hardening, dries slowly, and is a soft-set formula that is non-toxic and grit-free. It’s easy to apply and works well for long-term use without creating a mess.

Biggest downsides: The packaging contains a lot of content and visuals, which can make it difficult to read.

Honorable Mention

Red Devil Series 08162I
RD Pro Industrial Grade RTV 100%
Silicone Sealant

The Red Devil Series Industrial Sealant is made from silicone and remains permanently flexible upon application. The solvent is easy to clean up and can be applied in below freezing temperatures.

Price Check

Most notable upside: One of the main benefits of using the Red Devil Series Industrial Sealant is that it prevents mildew from forming once it’s applied. The thin design of the tube allows it to be easy to grip and apply in small crevices with a high level of precision, due to the small tip of the mouth. It’s considered to be a high-performance sealant and glazing compound, with a weather-resistant seal. It offers excellent adhesion on non-porous surfaces and is sold by an American family-owned business.

Biggest downsides: The small tube of the product can allow the formula to run out quickly when used for larger projects, which will require repurchasing the item. Only one size is available.

Also Consider

Design Polymerics 1030
Water Base Duct
Mastic Sealant

Consumers may find that a lot of the formula is needed to create a proper seal, which means using the product faster than you may expect. The formula is very messy and will require proper cleanup. It is also prone to shrinking once it dries.

Price Check

Most notable upside: This sealant is UL-181 listed rigid fiberglass, with flexible air ducts, and can be used for permanently sealing sheet metal and flexible duct system joints. The formula is non-toxic and offers easy application and clean-up because it’s water soluble. The product works more effectively than caulk because it’s harder and stronger due to its fibers. Once the sealant cures, it’s solid and durable for long-lasting application and can stick to almost every type of surface. It’s extremely easy to use, due to its design, and is packaged in a large bucket.

Biggest downsides: Consumers may find that a lot of the formula is needed to create a proper seal, which means using the product faster than you may expect. The formula is very messy and will require proper cleanup. It is also prone to shrinking once it dries.

All Our Picks

Tips for Effective Industrial Sealants

The most effective industrial sealants are versatile in terms of how they’re used and can be applied to different types of surfaces. The formula should be easy to apply with its bottle or container and shouldn’t create much of a mess. The sealant should also remain durable and effective in different weather conditions and is also non-flammable. A little should go a long way to ensure that less of the product should be used. The texture should also be thick and dry solid once it cures to ensure it can last long-term.

A Note About Safety and Storage

Most industrial sealants should be stored in a cool and dry climate, where they can be preserved and aren’t at risk of becoming damaged or drying out in between uses. Keep the sealant stored in a cupboard or on a shelf that is out of reach of children and pets to avoid contact. The cap, or top of the packaging, should be sealed tightly to prevent air from having contact with the formula. Store it upright to prevent spillage from occurring.

The Best Industrial Sealants

Your guide to this review today is by Cleaning expert Ben Murray

The Cleaning Institute

Testing Categories

Millrose 76003 Monster
Heavy-Duty Industrial
Grade with PTFE

Red Devil Series 08162I
RD Pro Industrial Grade RTV 100%
Silicone Sealant

Design Polymerics 1030
Water Base Duct
Mastic Sealant

All Our Picks

Millrose 76003 Monster
Heavy-Duty Industrial
Grade with PTFE

Red Devil Series 08162I
RD Pro Industrial Grade RTV 100%
Silicone Sealant

Design Polymerics 1030
Water Base Duct
Mastic Sealant

Tips for Effective Industrial Sealants

A Note About Safety and Storage

Quick Links

Sign Up for Our Newsletter

The Best Industrial Sealants

Your guide to this review today is by Cleaning expert Ben Murray

The Cleaning Institute

Testing Categories

Millrose 76003 Monster Heavy-Duty IndustrialGrade with PTFE

Red Devil Series 08162IRD Pro Industrial Grade RTV 100%Silicone Sealant

Design Polymerics 1030 Water Base DuctMastic Sealant

All Our Picks

Millrose 76003 Monster Heavy-Duty IndustrialGrade with PTFE

Red Devil Series 08162IRD Pro Industrial Grade RTV 100%Silicone Sealant

Design Polymerics 1030 Water Base DuctMastic Sealant

Tips for Effective Industrial Sealants

A Note About Safety and Storage

Quick Links

Sign Up for Our Newsletter

Millrose 76003 Monster
Heavy-Duty Industrial
Grade with PTFE

Red Devil Series 08162I
RD Pro Industrial Grade RTV 100%
Silicone Sealant

Design Polymerics 1030
Water Base Duct
Mastic Sealant

Millrose 76003 Monster
Heavy-Duty Industrial
Grade with PTFE

Red Devil Series 08162I
RD Pro Industrial Grade RTV 100%
Silicone Sealant

Design Polymerics 1030
Water Base Duct
Mastic Sealant