This rapid curing sealant is designed for aircraft fuel tanks and fuselage applications, with a temperature range of -80 to 320°F. It features excellent adhesion to various substrates, low sag properties for easy application, and maintains elastomeric qualities when exposed to jet fuel and aviation gas.This rapid curing sealant is designed for aircraft fuel tanks and fuselage a
Don't have an account? Register for an account here.
Overview
PR-1828 Class B is a rapid curing aircraft integral fuel tank sealant. It has a service temperature range from -80 to 320 deg F, with intermittent excursions up to 420 deg F. This material is designed for fillet sealing of fuel tanks and other aircraft fuselage sealing applications. The cured sealant maintains excellent elastomeric properties after prolonged to both jet fuel and aviation gas. PR-1828 Class B is a two-part, epoxy cured Permapol® P-3 polythioether compound. The uncured material is a low sag, thixotropic paste, suitable for application by extrusion gun or spatula. Unlike standard polysulfide fuel tank sealants, it can cure at low-temperatures and is unaffected by changes in relative humidity. This sealant has excellent adhesion to common aircraft substrates.
Features & Benefits
Rapid-curing Class B-1/4 sealant for accelerated application
Excellent resistance to jet fuel and aviation gasoline
Low-sag, thixotropic paste for vertical and overhead seams
Maintains elastomeric performance across a wide temperature range
Strong adhesion to aluminum, titanium, stainless steel, and coated surfaces
Cures effectively at low temperatures; unaffected by humidity variations
Ideal for fillet sealing in fuel tanks and fuselage structures
Specifications
Series: PR-1826
Container Size: 2.5 oz
Form: Liquid (Part A), Solid (Part B)
Color: Black/White (Part A/B)
Composition: >=20 to <=50% Bis-[4-(2, 3-Epoxipropoxi)Phenyl]Propane, >=20 to <=50% Phenol, Polymer with Formaldehyde, Glycidyl Ether (MW<=700), >=20 to <=31% Calcium Carbonate, >=5 to <=10% Carbon Black, >=1 to <3% [3-(2, 3-Epoxypropoxy)Propyl]Trimethoxysilane (Part A), >=20 to <=35% Calcium Carbonate, >=10 to <=20% Aluminum Hydroxide, >=1 to <=5% Titanium Dioxide, >=1 to <=5% Butanone, <1% 2, 2'-Thiodiethanethiol (Part B)
Curing Time: 7 Days
Specific Gravity: 1.36 (Part A), 1.45 (Part B)
Viscosity: >21 cSt (Part A)
VOC Content: 1 g/L (Part A), 33 g/L (Part B)
Shelf Life: 9 Months
Tensile Strength: 350 psi
Flash Point: 65.56 deg C (Part B)
Boiling point: >37.78 deg C (Part A)
Mixing Ratio: 8.5:100
Application Time: 1/4 hr
Domestic/Import: Domestic
Technical Information
AMS 3277 - Type 1 Class B-1/2, -1/4, -2 Grade 1, FMS-3055 - Class B-1/2, -2 LOCKHEED MARTIN, MS-3064 - FORM I Class B-1/2, -1/4, -2 LOCKHEED - FORT WORTH
Don't have an account? Register for an account here.
Product information provided "as is", and Boeing may add, change, discontinue or remove product information at any time. Product photos may not be exact match to product delivered. Seeterms & conditions.
