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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® 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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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 Compliant Seam and Gutter Sealant is composed of SBR rubber and high quality resins, which cures to form a tough, rubbery seal that expands and contracts with the change of weather without cracking. Form

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OSI® Pro-Series® GS-125™ Gutter & Seam Sealant Compliant Gutter Sealer is composed of SBR rubber and high quality resins, which cures to form a tough, rubbery seal that expands and contracts with the change of weather without cracking. Formulated esp

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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® QUAD™ Advanced Formula 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 300 window, door & siding matched colors with 4" spout for professional use. Visit the Color Cross Reference section of the website to find a OSI® QUAD™ Advanced Formula Sealant color match.

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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-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

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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 extrusio

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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® 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 no

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OSI® Pro-Series® SF-450™ VOC Heavy-Duty Subfloor & Construction Adhesive is a premium heavy-duty grade adhesive for glued floor systems. Cold weather formula for easier extrusion and excellent adhesion in all weather conditions. Bonds dry, wet

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OSI® GreenSeries™ Pro-Foam II™ Minimally Expanding Sealant (VOC level 25%) is a one component, minimal expanding urethane foam sealant used to insulate, seal, and fill around heating and air conditioning units, plumbing, electrical, refrigeration, windows and foundation to eliminate drafts and stop expensive energy loss. The foam adheres to all surfaces except Teflon, silicone and polyethylene and provides an R-Value of five per inch of foam, while also doubling as a sound barrier. It is available in 29-ounce cans. UL® Tested & Classified R11059.

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OSI® Pro-Series® GS-121™ VOC Gutter & Seam Sealant is excellent for sealing seams, joints, and cracks in gutter troughs, and will bond to any clean surface. OSI® Pro-Series® GS-121™ VOC Gutter & Seam Sealant may also be used on shee

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OSI® Pro-Series GS-125™ VOC Gutter & Seam Sealant is excellent for sealing seams, joints, and cracks in gutter troughs, and will bond to any clean surface. OSI® ProSeries GS-125™ VOC Gutter & Seam Sealant Compliant Gutter Sealer may also be used

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OSI® QUAD™ Advanced Formula 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 300 window, door & siding matched colors with 4" spout for professional use. Visit the Color Cross Reference section of the website to find a OSI® QUAD™ Advanced Formula Sealant color match.

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