Spend less time on the ground and more time in the sky by choosing PPG Aerospace® PR-1829 B-1/2 Canopy and Windshield Sealant from SkyGeek. The proven windshield sealant offers a rapid cure and a strong seal, keeping your windshield in place and preventing leaks. The Class B sealant has a service temperature range from -80°F (-62°C) to 320°F to (160°C), with intermittent excursions up to 420°F (216°C), so temperature fluctuations are never a problem. The thick sealant is designed for fillet sealing and can be used on glass, polycarbonate, acrylic and other common windshield materials. The sealant contains no organic solvents and will not craze substrates. Once cured, PPG Aerospace® PR-1829 B-1/2 Canopy and Windshield Sealant offers excellent resistance to UV and weather exposure, maintaining a strong bond and keeping your windshield as leak-free as possible.
PPG Aerospace® PR-1829 B-1/2 Canopy and Windshield Sealant from SkyGeek is gray and goes on smoothly for the best seal. The two-part epoxy-cured Permapol® polythioether compound has a paste-like consistency with low sag, so it's suitable for application via an extrusion gun or spatula.
| Application Properties (typical) | | | Color | Part A - Black
Part B - White
Mixed - Gray | | Mixing ratio by weight | Part A: Part B
12.5:100 | | Base Viscosity | 16,000, (1600)
(Brookfield #6 @ 10rpm), Poise (Pa-s) | Application life and cure time
@ 77°F (25°C), 50% RH | | | Application life (hours) | Tack free time (hours) | Cure time to 30 A Durometer (hours) | | B-1/4 | 1/4 | <2 | 3 | | B-1/2 | 1/2 | <3 | 4 | | B-2 | 2 | <16 | 24 | | |
| Performance Properties (typical) | | | Cure Time | 7 days @ 77°F (25°C), 50% RH | | Cured specific gravity | 1.47 | | Nonvolatile content,(%) | 99% | | Ultimate cure hardness (Durometer A) | 45 | | Peel strength, pli (N/25 mm),100% cohesion | | AMS 2629 JRF immersion, 7 days @ 140°F (60°C) | AMS 2629 JRF/NaCl-H2O immersion, 7 days @ 140°F (60°C) | | AMS 2471 (Anodized aluminum) - 38 (169) | AMS 2471 (Anodized aluminum) - 50 (222) | | AMS 4901 (Titanium)* - 40 (178) | AMS 4901 (Titanium)* - 54 (240) | | AMS 5516 (Stainless steel)* - 40 (178) | AMS 5516 (Stainless steel)* - 53 (236) | | MIL-C-5541 (Alodine aluminum) - 35 (156) | MIL-C-5541 (Alodine aluminum) - 55 (245) | | MIL-C-27725 (IFT coating) - 42 (187) | MIL-C-27725 (IFT coating) - 52 (231) | | *Primed with PR-142 Adhesion Promoter | | | Tensile strength, psi (KPa) | 411 (2834) - Standard cure,7 days @77°F(25°C), 50% RH | | Elongation, % | 283 - Standard cure,7 days @77°F(25°C), 50% RH | | Thermal rupture resistance | Retains pressure of 10 psi with only negligible deformation, both before and after immersion in JRF. | | Low temperature flexibility @ -65°F (-54°C) | No cracking, checking or loss of adhesion. | | Corrosion resistance | No corrosion, adhesion loss, softening, or blistering after 20-day immersion in 2-layer salt water/AMS 2629 JRF after 12 days @ 140°F (60°C) | | Resistance to hydrocarbons | Weight loss : 3.2% - 7 days @ 140°F(60°C) immersed in AMS 2629 JRF. | | Flexibility | No cracks after bending 180 degrees over 0.125 inch (3.18 mm) mandrel. | | Repairability to itself | Excellent to both freshly cured as well as fuel aged and abraded fillets. | | Fungus resistance | Non-nutrient | |
Note: The application and performance property values above are typical for the material, but not intended for use in specifications or for acceptance inspection criteria because of variations in testing methods, conditions and configurations.
Surface preparationImmediately before applying sealant to primed substrates, the surfaces should be cleaned with solvents. Contaminants such as dirt, grease, and/or processing lubricants must be removed prior to sealant application.
A progressive cleaning procedure should be employed using the appropriate solvents and new lint free cloth (reclaimed solvents or tissue paper should not be used). Always pour solvent on the cloth to avoid contaminating the solvent supply. Solvent may craze polycarbonate. Wash one small area at a time.
It is important that the surface is dried with a second clean cloth prior to the solvent evaporating to prevent the redeposition of contaminants on the substrate.
Substrate composition can vary greatly. This can affect sealant adhesion. It is recommended that adhesion characteristics to a specific substrate be determined prior to application on production parts or assemblies. For adhesion to polysulfide sealants, PR-187 Adhesion Promoter must be used. For adhesion to polycarbonate and acrylic substrates, PR-142 Adhesion Promoter must be used.
For a more thorough discussion of proper surface preparation, please consult the SAE Aerospace Information Report AIR 4069. This document is available through SAE, 400 Commonwealth Avenue, Warrendale, PA 15096-0001.
Mixing instructions
PR-1829 Class B is supplied in a Semkit® package. See the container for specific mixing instructions. The mix ratio is very critical.
Storage life
The storage life of PR-1829 Class B is at least 9 months when stored at temperatures below 80°F (27°C) in original unopened containers.
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 industrial use only. Keep away from children.
For emergency medical information call 1-800-228-5635.
Safety Data Sheet
INTERNATIONAL SHIPPING
HAZMAT ORDERS
Country of Origin