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OSI® Pro-Series® RT-600™ Roof Tile Adhesive is a premium grade adhesive developed especially for the repair and installation of concrete, clay, slate or composite type roof tiles on existing roofs. OSI® Pro-Series® RT-600™ Roof Tile Adhesive offers long life expectancy with reduced labor and installation costs.

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OSI® Pro-Series® WF-12™ Wonder Foam™ is a one-component polyurethane expanding foam sealant packaged in self-contained pressurized cans. The system is designed for use in all seasons to fill gaps, cracks and holes in all types of building structures.

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OSI® Pro-Series® Quick-Set Pro-Foam II™ Sealant is a one component minimal expanding urethane foam sealant. Fills and seals openings around doors, windows and foundations. Insulates with a 5R factor per inch. Complies with current environmental regulations. For professional use only.

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OSI® Pro-Series® PC-12™ Pro Clean is a cleaning solvent used to dissolve uncured or fresh polyurethane foam sealant.  Desighned for easy cleaning of foam spills and the Pro-Gun II™. Will not dissolve cured foam sealant.

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OSI® Pro-Series® Micro® Premium Gutter Sealer is a unique multi-polymer compound designed for exterior all-weather applications. When used as directed, the sealer will remain permanently flexible. This product possesses enhanced adhesion characteristics that prevents rust, stops leaks fast and seals joints on a variety of outdoor surfaces.

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FlameSeal® Fire, Smoke & Draft Stop Sealant is a multi-purpose, one compound elastomeric product for sealing joints and service penetrations in Fire Separations and Firewalls. It is designed to prevent the passage of flame, smoke and fumes under actual fire conditions of 1, 2, and 3 Hour fire resistance rated systems. FlameSeal utilizes a special waterborne technology that is both non-toxic and non-hazardous. This easy to use sealant was developed for use in both residential and commercial fire stopping applications.

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OSI® Pro-Series® PC-158™ Painter's Choice™ Latex Caulk is an economy grade painter's caulk for most interior jobs. Repairs plaster cracks and gaps in windows and doors, baseboards and other trim work prior to painting. Paintable in one hour. Soap and water clean up.

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OSI® Pro-Series® GS-121™ Gutter & Seam Sealant is a general purpose sealant for all gutters, down spouts, heating and AC ducts, and other seams in sheet metal surfaces. Available in White, Aluminum and Brown. Cartridge has 3

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OSI® Pro-Series® GS-125™ Gutter Sealer is a general purpose sealer for gutters and other metal seams. Low viscosity for easy application. Available in White, Aluminum and Brown.

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OSI® Pro-Series® SA-167™ Siliconized Acrylic Latex Caulk is a premium grade acrylic caulking for interior/exterior applications. Offers excellent adhesion to most building materials. Clean up with soap & water. Cured caulk is mold and mildew resistant, with a long life expectancy. Paintable in one hour.

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OSI® Pro-Series® PR-256™ Textured Polyurethane is a one-part, moisture curing polyurethane sealant available in a gun grade consistency. It is designed as a general-purpose sealant for use in most window, door, siding and roofing applications.

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OSI® Pro-Series®  H2U™ Acrylic Urethane Sealant is a high performance sealant designed for the siding and window industries. This superior urethane formula has better adhesion, flexibility and durability than most sealants, and cleans up easily with soap and water. Cured sealant is paintable and will resist surface mold and mildew.

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OSI® Pro-Series® Quad™ Window, Siding, Gutter & Roof Sealant is a unique multi polymer formula recommended for windows, siding, gutter and roof application. Stays flexible in hot and cold weather. Superior adhesion characteristics. Easy extrusion in cold weather. Clear is crystal clear. Paintable when cured. Available in over 150 siding matched colors with 4" spout for professional use. Visit the Color Cross Reference section of the website to find a OSI® Pro-Series® Quad™ Window, Siding, Gutter & Roof Sealant color match.

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OSI® Pro-Series® PR-255™ Polyurethane Window, Siding, Door & Roof Sealant is a one part, non-sag, polyurethane sealant, characteristics with unique curing process for outstanding performance. Adheres to most common building substrates without primers. Custom colors available upon request.

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OSI® Pro-Series® HM-270™ Construction Silicone Sealant is a high modulus, 100% RTV silicone. Withstands temperatures -60°F to 400°F ± 25% movement capability. For use in many applications involving non-porous building materials such as glass, metal and most plastics. Fast curing.

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OSI® Pro-Series® Formula #38™ Drywall & Metal Framing Adhesive is best suited for bonding gypsum board to wood or metal studs, laminating gypsum board to gypsum board and bonding gypsum board to concrete or block walls. It is widely used in new construction of single-family and multi-family homes, manufactured housing, commercial construction, and all remodeling, remedial and renovation projects where drywall or gypsum products are installed.

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OSI® Pro-Series® SBR-100™ Window and Siding Caulk is a one component, medium grade, solvent release caulking compound. Formulated for year-round use, SBR- 100® will extrude consistently and easily from 0°F. to 100°F. This unique rubber base product air cures to form a tough elastomeric seal that maintains its bond under most weather conditions.

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OSI® Pro-Series® QB-350™ Latex Multi-Purpose Construction Adhesive is an environmentally safe, non-toxic, non-flammable adhevive. Bonds all types of pre-finished panels, tub kits, plastic and foam insulation panels, ceramic tile and other common building materials. Safe for use on vinyl covered gypsum panels. Cleans up with soap and water.

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OSI® Pro-Series® SF-400™ All Purpose Sub-Floor & Construction Adhesive is an exclusive, high performance formulation developed primarily for Glued-Floored Systems. Proven by professionals for its unsurpassed quality, strength and versatility in general construction use, this adhesive has built a reputation of being stronger than nails with qualities like water resistance, long term aging, noise reduction, reduced floor squeaks and reduced installation costs.

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OSI® Pro-Series® QB-300™ Multi Purpose Construction Adhesive is a versatile dual purpose adhesive for bonding all types of paneling to structurally sound surfaces. Installs vinyl covered gypsum panels and all types of foam panel boards. Bonds foam to block or concrete walls and ceilings. Adheres cork, marble, polystyrene bath panels. Waterproof, fast grab, sets up quickly.

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OSI® Pro-Series® SW-325™ Shear & Drywall Adhesive is a high performance latex-based construction adhesive designed for drywall applications and fabricating shear wall rated assemblies. This adhesive is non-flammable, environmentally safe and VOC compliant for all interior and in-plant construction use. Product offers fast strength development with high shear strength values. Green Series SW-325 is also well suited for many other interior construction projects where high bond strength is needed.

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OSI® Pro-Series® VP-275™ Multi-Purpose Silicone Sealant is a neutral cure, low modulus, 100% silicone sealant. Excellent for all applications involving non-porous and porous building materials. Provides up to ± 50% movement capability. Designed for use on vinyl (PVC) siding and windows. Easy application and tooling.

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OSI® Pro-Series® SF-450™ Heavy Duty Sub-Floor & Construction Adhesive is a heavy duty, premium grade construction adhesive developed for Glued Floor Systems. It offers an improved cold weather formula to provide excellent adhesion and easier extrusion under all weather conditions. It offers fast set, superior strength development and is compatible with most building materials.

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OSI® Pro-Series® SF-550™ High Performance Subfloor & Deck Adhesive is a copolymer latex formula and is environmentally safe and non-flammable. Developed for Glued Floor Systems and general construction needs. Adheres to wet, frozen, or treated lumber. High ultimate shear strength. Adheres to wood, ceramic tiles, fiberglass, all types of foamboard and most other common building materials. Use both interior and exterior.

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OSI® Pro-Series® SF-565™ VOC Compliant Sub-Floor Adhesive incorporates a new advanced solvent/rubber based technology. It is one of the first exterior solvent-based adhesives to meet stringent California low VOC requirements. Developed primarily for Glued Floor Systems, this premium product was designed to give the best features considered important in interior/exterior construction projects.

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OSI® Pro-Series® FRP-555™ Latex FRP Adhesive is a high quality, solvent free adhesive for installing fiberglass reinforced panels on common surfaces. This nonflammable adhesive provides an excellent bond to most commonly used materials like drywall, wood, concrete, metals, plastic and plastic foams, etc. It offers long open time with strong yet flexible adhesive bond.

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OSI® Pro-Series® RF-140™ Roofing & Flashing Sealant is manufactured using a special synthetic rubber and select cuts of asphalts. This allows RF-140 ™ to cure into a tough, rubbery stage which will expand and contract more readily during temperature variations.

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OSI® Pro-Series® BT-145 Black Magic™ Blacktop Crack Sealant is an easy-to-use filler for cracks in asphalt surfaces.

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OSI® Pro-Series® CS-150™ Latex Concrete Crack Sealant is a quality latex caulk suitable for repairing cracks in any concrete surface. Long lasting, weather resistant formula.

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OSI® Pro-Series® SC-175™ Acoustical Sound Sealant is a water based sealant designed to reduce sound transmissions in walls and partition systems. Primary function is to achieve and maintain the specific STC (Sound Transmission Class) value of the system design. VOC compliant.

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OSI® TeQ::Seal™ Window Flange Sealant is the one sealant you’ll need to install for windows and doors. It adheres to vinyl, wood, aluminum and most building materials including common weather barriers and won’t harm flashing.

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15 Year Warranty

OSI® TeQ::Foam™ Windows & Doors, provides optimal protection from moisture infiltration while its minimal expansion preserves perfectly straight window and door openings.

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15 Year Warranty

OSI® TeQ::Flash™ Flexible Window Flashing comes in convenient 100-foot rolls sized for minimal trimming and go-fast installation in any application. The rubberized asphalt product can be applied in temperatures below 40 degrees.

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15 Year Warranty

OSI® Pro-Series® Quad™ VOC Window, Siding, Gutter & Roof Sealant is a unique multi polymer formula recommended for windows, siding, gutter and roof application. Stays flexible in hot and cold weather. Superior adhesion characteristics. Easy extrusion in cold weather. Clear is crystal clear. Paintable when cured. Available in over 150 siding matched colors with 4" spout for professional use. Visit the Color Cross Reference section of the website to find a OSI® Pro-Series® Quad™ Window, Siding, Gutter & Roof Sealant color match.  

A new VOC compliant formula was created to supply VOC restricted areas with a product that not only meets the high quality standards set by the original formula, but satisfies all State and Federal VOC regulations.  OSI® Pro-Series® Quad™ VOC Window, Siding, Gutter & Roof Sealant meets those standards and is available in an impressive color pallet.

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OSI® Pro-Series® SC-170™ Acoustical Sound Sealant is specially designed for reducing sound transmissions in all types of wall partitions to maintain specified STC values.  Sealant is non-hardening, non-staining and very tacky.  It adheres to drywall, wood, metal, masonry, polythylene and other building materials.  Provides an air tight vapor barrier when used with polyethylene sheeting to help prevent air infilltration and the formation of condensation.  Extrudes easily between 0ºF - 100ºF (-18ºC - 38º C).

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RT-1000™, an Elastomeric Roof Sealant is made using high quality S.E.B.S. rubber block co-polymers and synthetic resins.  It is available in a non-sag formulation.  This unique blend of rubber and resin creates a sealant that is UV resistan

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