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DOWSIL™ 733 Glass & Metal Sealant®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow DOWSIL™ 733 Glass & Metal Sealant Page 1 of 4 © 2017–2021 The Dow Chemical Company. All rights reserved. Form No. 95-1071-01-0421 S2D Typical Properties (Cont.)Test Property Unit Result Physical Properties – As Cured 2 Days at 25°C (77°F) and 50% RH Adhesion, 180° Peel Strength Stainless Steel pli 20 Matte Finish Steel pli 20 Aluminum pli 21 Description DOWSIL™ 733 Glass & Metal Sealant is a paste-like, one-component material that cures to a tough, rubbery solid upon exposure to moisture in the air. Because it does not flow, this sealant can be applied overhead or on sidewall joints and surfaces without sagging, slumping or running off. DOWSIL™ 733 Glass & Metal Sealant is specially formulated to provide good adhesion to various substrates. Listings/ Specifications  Recognized under UL 94 HB Complies with FDA.  Regulation 21 CFR 177.2600 for incidental contact with food. How to Use Estimating For estimating sealant requirements, multiply gallons by 128 fluid ounces and divide by the cartridge size. Example: 11 gallons required x 128 fluid ounces = 1408 divided by a 10.1 fluid ounce cartridge = 139 cartridges required. Application DOWSIL™ 733 Glass & Metal Sealant is supplied in ready-to-use form. It extrudes readily from its container under pressure. The paste like consistency makes it easy to work; a spatula or paddle can be used to tool the surface. Bonding Thoroughly clean and degrease metal and plastic surfaces using a DOWSIL™ OS (ozonesafe) fluid or other suitable solvent. Rubber surfaces should be roughened with sandpaper, then wiped with acetone. Follow precautions given on the solvent container label. Apply DOWSIL™ 733 Glass & Metal Sealant to the prepared surface in a uniform thickness. Then, let the unit stand undisturbed at room temperature to cure. Sealing The use of DOWSIL™ 733 Glass & Metal Sealant in sealing applications follows approximately the same step-by-step procedures outlined for bonding applications. After preparing the surfaces and priming where required, the sealant is applied by forcing it into the joint or seam to obtain full contact between the sealant and the surface. ®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow DOWSIL™ 733 Glass & Metal Sealant Page 3 of 4 © 2017–2021 The Dow Chemical Company. All rights reserved. Form No. 95-1071-01-0421 S2D How to Use (Cont.) Tack-free Time Cure progresses inward from the surface. At conditions of at least 25°C (77°F) and 50 percent relative humidity, a tack-free skin forms within 10 to 15 minutes. Tooling should be completed within 5 to 10 minutes of application. Alternate periods of application and tooling may be required. If masking tape is used to mask an area, it must be removed before the tack-free skin forms. Cure Time Cure time is affected by relative humidity, degree of confinement and cross-sectional thickness of the sealant. Sections up to 1/8 inch thick become rubbery solids in about 24 hours at room temperature and 50 percent relative humidity. Less humidity increases cure time slightly. In applications where DOWSIL™ 733 Glass & Metal Sealant may be partially or totally confined during cure, the time required for proper cure is generally lengthened by the degree of confinement. It is possible that with absolute confinement, cure will not be completed. Every application involving confinement during cure should be thoroughly tested before use.