Rapid Set


Multi-Surface, Multi-Purpose Hybrid Silane Polyether

DESCRIPTION: Rapid Set® FLEXIBLE CONSTRUCTION ADHESIVE & SEALANT is a single-component, multi-purpose, fast curing, strong, UV stable, flexible adhesive and sealant that provides a durable elastic bond to a variety of similar and dissimilar construction materials. Its hybrid silane polyether chemistry enhances both adhesive and cohesive bond, prevents shrinkage upon cure, provides high tensile strength and flexibility, exceptional durability, and weather resistance. FLEXIBLE CONSTRUCTION ADHESIVE & SEALANT promotes superior adhesion that outperforms the bond strength of polyurethanes, and will not foam on damp surfaces. This environmentally friendly formulation has a low VOC content, is 100% solvent free, and contains no isocyanates.

USES: Use FLEXIBLE CONSTRUCTION ADHESIVE & SEALANT for a wide variety of adhesive and sealant applications, including: bonding concrete, masonry, brick, stone, plywood, expansion joints, precast concrete connections, weather sealing, roofing, windows, door frames, siding, cove joints, parapets, and other dissimilar materials. This high-performance material provides excellent adhesion to EPDM and SBS-modified bitumen membranes, aluminum, galvanized metal, steel, engineered plastics, PVC, glass, fiberglass, FRP, and EPS foam.

ENVIRONMENTAL ADVANTAGES: Low VOC, 100% solids, isocyanate-free products are ideal for applications where the presence of VOCs, fumes or vapors are unacceptable. These products reduce the health risks of building occupants, installers and contractors; and contribute to improved indoor and outdoor air quality. Maximum durability and service life minimizes construction waste byproducts.

REGULATORY COMPLIANCE: Conforms to the OTC Rule for sealants and caulks. Meets the requirements of California Regulations: CARB, BAAQMD, and SCAQMD. Conforms to USDA Requirements for non-food contact.

GREEN STANDARDS: LEED 2.2 for new construction and major renovations: Low emitting materials (section 4.1) 1 Point. National Association of Home Builders (NAHB) model Green Home Building Guidelines: 5 global impact points. VOC Content: 8 grams/liter per ASTM D2369. EPA Method 24 (tested at 240°F [115°C]).

SURFACE PREPARATION: Ensure substrate is clean, sound, and free of bond inhibitors, such as grease, oil, mold, surface water, coatings and sealers. For best results, roughen surfaces with an abrasive disc or sand paper, then wipe with acetone. Tape off or protect adjacent areas.

APPLICATION: Apply between a minimum temperature of 35°F (2°C) and rising, and a maximum of 100°F (38°C). For best results, place adhesives between 70°F (21°C) and 80°F (27°C). Cut the end of the nozzle to match the width of the joint and insert a tool to puncture the inner foil seal. Ensure the opening size of the nozzle and foil seal are large enough to allow proper flow. Too small an opening could result in excessive back pressure leading to failure of the rear seal. For 28 oz. (828mL) unscrew to remove the nozzle. Use a sharp knife to cut the tapered portion of the nub, leaving the threaded portion intact. Screw the nozzle back onto the remaining nub threads. Cut the end of the nozzle to match the width of the joint. Ensure the opening size of the nozzle and cut nub are large enough to allow proper flow. Too small an opening could result in excessive back pressure,leading to failure of the rear seal. For both sizes, insert the cartridge into a caulking gun.Place nozzle at bottom of joint or application area to avoid trapping air during placement; keep the nozzle in the material during application. Using constant pressure, carefully apply the sealant with a smooth continuous bead. If tooling is needed, do so within 15 minutes of application.

CRACK/JOINT FILLING: To maintain flexibility, the ideal width to depth ratio should be 2:1. Do not exceed 1/2” (13 mm) depth. Place backer rod, where required, to control depth and prevent three-sided bonding. New concrete control joints and expansion joints (tooled or saw cut) must be free of contaminates, and have at least 72 hours of cure before placement.

CLEAN-UP: Remove excess material using acetone and disposable paper towels or cloth rags before the material cures on placement tools and adjacent surfaces. Dispose of waste material in compliance with local regulations.

CURING: Tack-free in 60 minutes; paintable in 90 minutes at 1/4" at 70°F (21°C), 50% relative humidity.

COLD WEATHER: Installation in low temperatures will extend cure times of the Rapid Set® Flexible Construction adhesive & sealant. To ease flow and placement in cold conditions, warm and keep the sealant at 70°F (21°C) 24 hours prior to installation. Remove dew, frost or ice from the substrate with acetone on a clean cloth and place sealant immediately.

WARM WEATHER: Installation in warmer temperatures 80°F to 100°F (27°C to 38°C) will not adversely affect sealant performance. Warmer temperatures will decrease viscosity and shorten cure time.

PACKAGING: Available in single-component, 10.1 fl. oz. (299 mL) and 28 fl. oz. (828 mL) cartridges, 20 fl. oz. (591 mL) sausages, 2-gal (7.6 L) and 5-gal (18.9 L) pails.

COLOR: Gray.

COVERAGE: 10.1 fl. oz. (299 mL) yields 18.2 in3 (298.2 cm3). 28 fl. oz. (828 mL) yields 50.5 in3 (828 cm3). 

Adhesive Bead, InchesLinear Feet Per Cartridge
1/8" (3 mm)96' (29 m)
1/4" (6 mm)24' (7 m)
Adhesive Bead, InchesLinear Feet Per Cartridge
1/8" (3 mm)288' (88 m)
1/4" (6 mm)72' (22 m)

SHELF LIFE: Rapid Set® FLEXIBLE CONSTRUCTION ADHESIVE & SEALANT has a shelf life of 24 months from the date of manufacture when properly stored.

STORAGE: Store in original, unopened container in a cool, dry area. Protect unopened container from water, heat and direct sunlight. Store at 40°F to 80°F (4°C to 27°C). Elevated temperatures will reduce shelf life.

LIMITATIONS: Do not apply greater than 1" (25 mm) width and 1/2" (13 mm) depth. Do not use in continuous immersion applications. Allow treated wood and asphalt to cure for six (6) months prior to application of FLEXIBLE CONSTRUCTION ADHESIVE & SEALANT. Do not apply on frozen substrates. Test and evaluate all paints and coatings before applying to FLEXIBLE CONSTRUCTION ADHESIVE & SEALANT. Some paints may not dry on sealant. Not approved for use with Exterior Insulation and Finish Systems (EIFS). High rates of moisture vapor will cause bubbling.

USER RESPONSIBILITY: Before using, read current technical data sheets, bulletins, product labels and safety data sheets. It is the user’s responsibility to review the instructions and warnings for any CTS products prior to use.

WARNING: AVOID CONTACT WITH SKIN AND EYES. Can cause skin irritation, may cause an allergic reaction, causes serious eye irritation. Wear protective gloves, protective clothing, and eye protection. In case of contact with eyes rinse immediately with plenty of water and seek medical advice.

Refer to the Safety Data Sheet and www.CTScement.com for additional safety information regarding this material.

LIMITED WARRANTY: CTS Cement Manufacturing Corp. (CTS) warrants its materials to be of good quality and at its option, within 18 months from date of manufacture, will replace material proven defective or refund purchase price thereof, and such replacement or refund shall be the limit of CTS’ responsibility. Except for the foregoing, all warranties, expressed or implied, including merchantability and fitness for a particular purpose, are excluded. CTS shall not be liable for any consequential, incidental, or special damages arising directly or indirectly from the use of the materials.

WARNING: CANCER and REPRODUCTIVE HARM - www.P65Warnings.ca.gov


Outperforms and outlasts silicone and polyurethane technologies
Use for cracks and joints, windows, doors, siding, trim, kitchen, bath, plumbing
Superior adhesion to multiple surfaces
Fast CURING: Paintable and waterproof in 90 minutes
Excellent flexibility
Bonds to wet surfaces
Freeze thaw resistant -4°F (-20°C) to 194°F (90°C)
Weather and UV resistant, non-shrink
No odor, and no isocyanates
Conforms to:
ASTM C920, Type S, Grade NS, Class 50, Uses T1, NT, M, G, A, O, ASTM E84, Class A
Federal Specification TT-S-00230-C, Type ll, Class B
Army Corps of Engineers CRD-C-541, Type ll, Class B
Canadian Standards Board CAN 19, 13-M82
MasterFormat® 2016
03 05 00Concrete Bonding Agents, Admixtures and Adhesives
03 05 07Adhesives for Concrete
07 01 90Joint Sealant Rehabilitation/Replacement
07 92 13Elastomeric Joint Sealants
09 05 00Adhesives – Common Work Results, Finishes
99 00 00Construction & Industrial Products
CTS Cement Manufacturing Corp. 12442 Knott St. Garden Grove, CA 92841 Tel: 800-929-3030 | Fax: 714-379-8270 Web: www.CTScement.com E-mail: info@CTScement.com

7 Days at 70°F (21°C)
Stain and Color Change, ASTM C510No change
Hardness, Shore A, ASTM C66145
Tack Free Time, ASTM C679< 60 minutes
Joint Movement, ASTM C719 /- 50%
Adhesion-in-Peel, ASTM C794Vinyl 55 pli Concrete 36 pli Glass 55 pli Aluminum 55 pli
Tensile Strength, ASTM D412370 psi (2.55 MPa)
Tensile Elongation, ASTM D412> 600%
Tear Strength, ASTM D624111 pli
VOC, ASTM D23698 g/l
Viscosity600,000 cps, Brookfield HADV2T, T-E Spindle, 5 RPM, 73°F (23°C)
ShrinkageNone visible after 14 days
Service Temperature-20°F To 180°F (-40°C to 93°C)
Note: Data obtained at 70°F (21°C). ASTM Standards are current unless otherwise stated.
VOC Compliance (Volatile Organic Compound)
Meets U.S. EPA 40 CFR 59 Subpart C & D; CARB: California Air Resource Board; LADCO: Lake Michigan Air Directors Consortium (Illinois, Indiana, Michigan, Wisconsin); MRPO: Midwest Regional Planning Organization (Illinois, Indiana, Michigan, Ohio, Wisconsin); SCAQMD: South Coast Air Quality Management District (Los Angeles, Orange, Riverside, San Bernardino Counties); and CEPA/EC: Canada Environmental Protection Agency/Environment.
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