Sealants (MS, Silicone, Poly)

Industrial & Construction Use

MS Polymer, Silicone & Polyurethane Sealants

Fill joints, seal panels, and bond mixed substrates.

Sealants are critical for filling joints, sealing panels, and bonding mixed substrates in construction, fabrication, and manufacturing. We stock MS polymer hybrids, neutral-cure silicones, and polyurethane chemistries engineered for long-term flexibility, UV and weather resistance, and excellent substrate compatibility across metal, stone, plastic, and composites.

Which chemistry fits your job?

Selecting the right chemistry prevents joint failure, shrinkage, and adhesion issues over time.

MS Polymer (Hybrid)

  • Adhesion: Strong on almost all substrates
  • Flexibility: Very High
  • Paintable: Yes (Highly paintable)
  • Notes: Low odor, zero isocyanates, very modern and versatile.

Silicone (RTV)

  • Adhesion: Great as a sealant; lighter structural bond
  • Flexibility: Excellent
  • Paintable: No (unless acrylic-modified)
  • Notes: Top choice for UV exposure, waterproofing, and high heat.

Polyurethane

  • Adhesion: Very strong, excellent on porous materials
  • Flexibility: Moderate to High
  • Paintable: Yes (usually after full cure)
  • Notes: Industrial standard for construction. Contains isocyanates.

Popular Applications

  • Stone & Solid Surface: Countertop seams, undermount sinks, wet-area sealing, and splash protection.
  • Construction: ACM and metal panel bonding, expansion joints, and façade sealing.
  • Transportation: Trailer assembly, RV manufacturing, and bonding dissimilar vibration-prone materials.
  • Exterior & Marine: Glazing, skylights, and highly durable weatherproof perimeters.

Trusted Sealant Brands

Chem-Set®

Hybrid MS polymers & one-part RTV and Neutral cure silicones for countertops, general sealing, and panel installs.

Spotlight: Chem-Set® MS-35 (Ultra Clear and White) hybrid sealants, also known as “silicone on steroids.”

Shop MS-35 Hybrid →

BoaBond®

Instant Grab and Hold MS Polymer adhesive commonly used for heavy undermount sink and vertical panel mounting.

Shop BoaBond Instant Grab →

American Sealants® (ASI)

Innovative products, including hybrid polyethers and silicones, designed for demanding applications and superior durability.

Shop American Sealants →

Silco®

A leading manufacturer of custom-compounded sealants and adhesives, specializing in silicone and hybrid chemistries.

Shop Silco →

Cemedine® TILE ACE

A one-component MS Polymer adhesive that delivers fast, flexible, and durable bonding for large format stone and tile installations.

Shop Tile Ace →

Parker LORD®

Industrial sealants and adhesives for metal building, transportation, and heavy MRO.

Spotlight: LORD 7610 DTM (Direct-to-Metal) hybrid sealants — formulated to bond/seal coated & galvanized metals.

Shop LORD 7610 DTM →

Sika®

Sika provides high-performance polyurethanes and hybrid sealants for construction and industrial manufacturing applications.

Shop Sika →

Shin-Etsu®

A leading global manufacturer of high-performance silicone materials engineered for advanced electronics and specialty applications.

Shop Shin-Etsu →

Integra Adhesives®

Integra TopSeal is a color-matched MS Polymer sealant that provides instant grip and durable seams for backsplashes and showers.

Shop Integra TopSeal →

Devcon®

Offers industrial-grade silicone and urethane sealants designed for reliable bonding and weatherproofing in demanding environments.

Shop Devcon →

Pacer®

Makers of ProSeal brands. Produces versatile silicone sealants engineered for high-temperature applications across automotive uses.

Shop Pacer →

Permatex®

A leading manufacturer known for high-performance RTV silicones, gasket makers, and sealants engineered for extreme fluid resistance.

Shop Permatex →

Need help selecting the right sealant for your job?

Because of strict environmental resistance requirements, paintability, and material flex, choosing the exact right chemistry is critical. Reach out to our team to get a product recommendation.

Industrial & Construction Use

MS Polymer, Silicone & Polyurethane Sealants

Fill joints, seal panels, and bond mixed substrates.

Sealants are critical for filling joints, sealing panels, and bonding mixed substrates in construction, fabrication, and manufacturing. We stock MS polymer hybrids, neutral-cure silicones, and polyurethane chemistries engineered for long-term flexibility, UV and weather resistance, and excellent substrate compatibility across metal, stone, plastic, and composites.

Which chemistry fits your job?

Selecting the right chemistry prevents joint failure, shrinkage, and adhesion issues over time.

MS Polymer (Hybrid)

  • Adhesion: Strong on almost all substrates
  • Flexibility: Very High
  • Paintable: Yes (Highly paintable)
  • Notes: Low odor, zero isocyanates, very modern and versatile.

Silicone (RTV)

  • Adhesion: Great as a sealant; lighter structural bond
  • Flexibility: Excellent
  • Paintable: No (unless acrylic-modified)
  • Notes: Top choice for UV exposure, waterproofing, and high heat.

Polyurethane

  • Adhesion: Very strong, excellent on porous materials
  • Flexibility: Moderate to High
  • Paintable: Yes (usually after full cure)
  • Notes: Industrial standard for construction. Contains isocyanates.

Popular Applications

  • Stone & Solid Surface: Countertop seams, undermount sinks, wet-area sealing, and splash protection.
  • Construction: ACM and metal panel bonding, expansion joints, and façade sealing.
  • Transportation: Trailer assembly, RV manufacturing, and bonding dissimilar vibration-prone materials.
  • Exterior & Marine: Glazing, skylights, and highly durable weatherproof perimeters.

Trusted Sealant Brands

Chem-Set®

Hybrid MS polymers & one-part RTV and Neutral cure silicones for countertops, general sealing, and panel installs.

Spotlight: Chem-Set® MS-35 (Ultra Clear and White) hybrid sealants, also known as “silicone on steroids.”

Shop MS-35 Hybrid →

BoaBond®

Instant Grab and Hold MS Polymer adhesive commonly used for heavy undermount sink and vertical panel mounting.

Shop BoaBond Instant Grab →

American Sealants® (ASI)

Innovative products, including hybrid polyethers and silicones, designed for demanding applications and superior durability.

Shop American Sealants →

Silco®

A leading manufacturer of custom-compounded sealants and adhesives, specializing in silicone and hybrid chemistries.

Shop Silco →

Cemedine® TILE ACE

A one-component MS Polymer adhesive that delivers fast, flexible, and durable bonding for large format stone and tile installations.

Shop Tile Ace →

Parker LORD®

Industrial sealants and adhesives for metal building, transportation, and heavy MRO.

Spotlight: LORD 7610 DTM (Direct-to-Metal) hybrid sealants — formulated to bond/seal coated & galvanized metals.

Shop LORD 7610 DTM →

Sika®

Sika provides high-performance polyurethanes and hybrid sealants for construction and industrial manufacturing applications.

Shop Sika →

Shin-Etsu®

A leading global manufacturer of high-performance silicone materials engineered for advanced electronics and specialty applications.

Shop Shin-Etsu →

Integra Adhesives®

Integra TopSeal is a color-matched MS Polymer sealant that provides instant grip and durable seams for backsplashes and showers.

Shop Integra TopSeal →

Devcon®

Offers industrial-grade silicone and urethane sealants designed for reliable bonding and weatherproofing in demanding environments.

Shop Devcon →

Pacer®

Makers of ProSeal brands. Produces versatile silicone sealants engineered for high-temperature applications across automotive uses.

Shop Pacer →

Permatex®

A leading manufacturer known for high-performance RTV silicones, gasket makers, and sealants engineered for extreme fluid resistance.

Shop Permatex →

Need help selecting the right sealant for your job?

Because of strict environmental resistance requirements, paintability, and material flex, choosing the exact right chemistry is critical. Reach out to our team to get a product recommendation.

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