Arrow Aluminum Industries, Inc.
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Arrowspace Glass
TECHNICAL
DATA - PRC® 4429 PRC® 4429 INSULATING GLASS SEALANT D PRC® 4429 insulating glass sealant is a high performance, two part polyurethane sealant specifically developed for sealing insulating glass units against moisture, cold, heat, and contamination. PRC® 4429 insulating glass sealant exhibits outstanding resistance to weathering, ozone, and solar radiation and provides for excellent adhesion to glass and aluminum. PRC® 4429 insulating glass sealant contains no solvents, and therefore exhibits no shrinkage. Use PRC® 4429 insulating glass sealant has been developed to provide an enduring elastomeric seal utilized in the manufacture of insulating glass units. Applicable standards Insulating glass units manufactured with PRC® 4429 insulating glass sealant meet or exceed the requirements of the following specifications: USA ASTM E-774 Canada Can/CGSB 12.8 Limitations PRC® 4429 insulating glass sealant is not intended for use in units manufactured for structural glazing applications. Units manufactured with PRC® 4429 insulating glass sealant must be fabricated and glazed in accordance with recognized industry standards. PRC® 4429 is intended for use in typical residential or commercial applications. Use of PRC® 4429 in units to be exposed to severe conditions, such as extreme heat or moisture, should be reviewed by PRC-DeSoto International Technical Services. Use of PRC® 4429 insulating glass sealant on coated glass (i.e. soft coat Low E) should be tested for adhesion and compatibility. Contact your glass supplier for specific recommendations. PRC® insulating glass sealants are compounded to be compatible with many commercial glazing materials. Technical data Hardness, Rex A After 16 hours RT 40 After 7 hours RT 25 Peel strength to glass piw 100% adhesive break, initial 30 After 30 days exposure to UV/moisture 30 Lap shear strength (psi) 100% cohesive break (glass to glass) 250 MVT rate (SIGMA method) 14 g/m²•24 hrs Moisture vapor permeance (ASTM E-395) metric perms 0.28 Film thickness mils (in) 60 mils (0.15cm) Relative humidity % 100 Temperature °C 38 Color Part A Black Part B White Service temperature, maximum 170°F Mix ratio By weight 100:5.6 By volume 100:8 Consistency Non-sag Extrusion rate at 30 psi, g/min 300 Application life at 75°F, 50% RH minutes 10-30 Cure time, hours 1 1/2-3 Surface preparation Glass: To obtain good adhesion, the surface of the glass should be cleaned thoroughly using standard glass washing equipment with a detergent based cleaner and hot water. The panels should be flushed thoroughly with softened or deionized warm water to remove all traces of detergent and immediately blown dry with oil free high pressure air. Metal: To obtain good adhesion, the surfaces should be cleaned with an oil free solvent. Nylon: Due to variations in corner key materials, testing for adhesion should be done. Primers for optimum adhesion are available. Mixing instructions Note: Proper mixing and correct proportions are extremely important to obtain optimum results.
PRC® Insulating Glass Sealants PRC-DeSoto International, Inc. Date issued: 3/00 410 Jersey Avenue Gloucester City, New Jersey 08030 Supersedes: 6/99 (609) 456 5700 Fax (609) 742 0890 (Formerly Courtaulds Aerospace, Inc.)
PRC® 4429 INSULATING GLASS SEALANT Various types of mechanical mixers can be used for mixing and dispensing PRC® 4429 insulating glass sealant. Continuous flow type mixers such as Graco, Pyles and H & G may be used to mix and dispense PRC® 4429 insulating glass sealant. When using these mechanical mixers, automatic metering devices must be adjusted to deliver base compound with accelerator in the ratio of 100:8 by volume (100:5.6 by weight). Proper quality assurance procedures should be established to check mix quality on a regular basis. Application properties Application life is the period of time that the compound remains at a consistency suitable for application. Application life is based on standard conditions at 75°F and 50% relative humidity. PRC® 4429 insulating glass sealant’s application life can be adjusted to meet specific manufacturing requirements. Curing characteristics PRC® 4429 insulating glass sealant cure time is adjustable and related to application life. PRC® 4429 insulating glass sealant, in most plant conditions, will cure to a firm flexible rubber within 1 1/2 - 3 hours. Cure times can be reduced by curing at elevated temperatures, not to exceed 115°F. Maintenance Repair to damaged areas, or remedial work on sealant, requires cutting back to fresh material (if existing sealant is more than 24 hours old) and applying new material. For specific recommendations, contact your local sales office. Technical services Additional technical information and literature are available from your PRC-DeSoto International PRC® Insulating Glass Sealants sales office. Availability When ordering this product, designate PRC® 4429 insulating glass sealant. Packages 55 gallon unit Total Contents and Container 12,705 cu. in. Shelf life The shelf life of PRC® 4429 insulating glass sealant is six months when stored at temperatures below 80°F in the original, unopened containers. Slight changes in the application properties may occur in storage, but these changes will not affect the performance properties of the cured material. Health precautions This product is safe to use and apply when recommended precautions are followed. Before using this product, read and understand the Material Safety Data Sheet (MSDS), which provides information on health, physical and environmental hazards, handling precautions and first aid recommendations. An MSDS is available on request. Avoid overexposure. Obtain medical care in case of extreme overexposure. For emergency medical information, call 1-800-228-5635.
PRC is a trademark of PRC-DeSoto International, Inc., registered with the U.S. Patent Office. All recommendations, statements, and technical data contained herein are based on tests we believe to be reliable and correct, but accuracy and completeness of said tests are not guaranteed and are not to be construed as a warranty, either expressed or implied. User shall rely on his own information and tests to determine suitability of the product for the intended use and assumes all risks and liability resulting from his use of the product. Seller’s and manufacturer’s sole responsibility shall be to replace that portion of the product of this manufacturer which proves to be defective. Neither seller nor manufacturer shall be liable to the buyer or any third person for any injury, loss, or damage directly or indirectly resulting from use of, or inability to use, the product. Recommendations or statements other than those contained in a written agreement signed by an officer of the manufacturer shall not be binding upon the manufacturer or seller.
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Arrow Aluminum Industries, Inc., Martin, Tennessee |
