Windshield sealant has a tough job. Not only does it have to seal your windshield, which is arguably one of the most critical components of your aircraft, it also has to do so without impeding your vision. Additionally, a good windshield sealant should stick to the job, not your hands, uniform or any other surface besides your windshield. The PPG® PR-1425 B-1/2 Black PRC Windshield and Canopy Sealant from SkyGeek is specially formulated with aviators in mind. It is made to stop leaks and drafts around the windshield, giving you peace of mind every time you take to the skies. With a B-1/2 cure rate, you’ll have plenty of time (or around 30 minutes) to get the sealant perfectly in place before it begins to cure.
PPG® PR-1425 B-1/2 Black PRC Windshield and Canopy Sealant is sold in a value-priced 24-pack. That means you’ll get 24 individual 2.5 oz 655-SemKits of the sealant with each order. That’s enough to outfit a whole team of aircraft technicians. PPG® PR-1425 B-1/2 Black PRC Windshield and Canopy Sealant is tailor-made for high-volume operations or techs who always like to have extras on hand. It delivers an even, flexible bond perfect for windshields, canopies and other transparency interfaces, so nothing interrupts your view or your safety.
Not only does this sealant boast excellent adhesion, but it also cures to a smooth, jet-black finish that looks as good as it performs. Whether you're sealing up a new canopy install or touching up around a windscreen, PR-1425 gets it right the first time. The black windshield sealant may not be see-through, but it is easy to see, allowing for visual inspections and better dependability overall.
No need to gamble on an improperly sealed windshield when you have PPG® PR-1425 B-1/2 Black PRC Windshield and Canopy Sealant from SkyGeek. When precision and aesthetics matter, this B-1/2 sealant is the clear choice.
| Application Properties (typical) | | | Color | Part A - Black
Part B - Black
Mixed - Black | | Mixing ratio by weight | Part A: Part B
10:100 | | 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 35 A Durometer (hours) | | B-1/2 | 1/2 | <8 | 24 | | B-1 | 1 | <24 | 48 | | B-2 | 2 | <24 | 48 | | |
| Performance Properties (typical) | | | Cure Time | 7 days @ 77°F (25°C), 50% RH | | Cured specific gravity | 1.49 | | Nonvolatile content,(%) | 93% | | Ultimate cure hardness (Durometer A) | 55 | | Peel strength, pli (N/25 mm),100% cohesion | | Dry, 14 days @ 77°F (25°C) | | MIL-G-25667 (Glass) - 50 (222) | | MIL-P-8184 (Acrylic)* - 48 (214) | | MIL-P-83310 (Polycarbonate)* - 46 (205) | | MIL-S-5059 (Stainless steel)* - 46 (205) | | MIL-T-9046 (Titanium comp. C)* - 46 (205) | | QQ-A-250/12 (Aluminum) - 46 (205) | | *Primed with PR-142 Adhesion Promoter | | | 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/JRF @ 140°F (60°C). | | Resistance to fluids | Excellent resistance to water, alcohols, petroleum-base and synthetic lubricating oils, and petroleum-base hydraulic fluids. | | 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. 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 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-1425 Class B is supplied in a two-part kit. Mix according to the ratios indicated in the application properties section. Mix Part A and Part B separately to uniformity, then thoroughly mix entire contents of both parts of the kit to-gether taking care to avoid leaving unmixed areas around the sides or bottom of the mixing container.
Storage life
The storage life of PR-1425 Class B is at least 9 months when stored at temperatures between 40°F (5°C) and 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.
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