Alumigrip 4400 / 4450 / 4250 / 4200 — Polyurethane Systems for Business and General Aviation

Country: · Model: Alumigrip 4400 / 4450 / 4250 / 4200

Alumigrip 4400, 4450, 4250 and 4200 are polyurethane coatings for business and general aviation, where colour depth, gloss and durability matter. The basis is a base coat plus clear coat system. The materials are qualified by Cessna, Gulfstream, Embraer, Pilatus, Piper and Learjet.

Alumigrip 4400: 3K high-solids polyurethane base coat; ≤ 85 GU; 19.09 m²/l at 25.4 µm (solid colours)
Alumigrip 4450: 3K acrylic-urethane clear coat, ≥ 90 GU, polishable; 19.29 m²/l; passes the high-pressure water jet erosion test
Alumigrip 4250: 3K base coat for accents and markings, 50 m²/l at 10 µm, only with clear coat 4450
Alumigrip 4200: 3K single-layer enamel, ≥ 90 GU, 21 m²/l at 25 µm; compatible with clear coat 4450

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Technical specifications

Alumigrip 4400	3K high-solids polyurethane base coat; ≤ 85 GU; 19.09 m²/l at 25.4 µm (solid colours)
Alumigrip 4450	3K acrylic-urethane clear coat, ≥ 90 GU, polishable; 19.29 m²/l; passes the high-pressure water jet erosion test
Alumigrip 4250	3K base coat for accents and markings, 50 m²/l at 10 µm, only with clear coat 4450
Alumigrip 4200	3K single-layer enamel, ≥ 90 GU, 21 m²/l at 25 µm; compatible with clear coat 4450
Reference	developed with the requirements of MIL-PRF-85285 in mind
Specifications	Cessna CMFS037/038/039, CSFS084; Gulfstream GAMPS4002, GMS 5008; Embraer MEP 10-125 Type I, MEP 10-80; Pilatus PMS0600-52-01, VV0605-28/33, VV0607-22; Piper PMS-F1010, PPS 25000; Learjet LES 1509

Specifications are taken from the manufacturer’s technical documentation. Updated 11/06/2026.

Description

Alumigrip 4400 is a three-component high-solids polyurethane base coat to the requirements of MIL-PRF-85285, with a gloss without clear coat of not more than 85 GU and a coverage of 19.09 m²/l at 25.4 µm for solid colours. It is applied only with clear coat 4450, a three-component acrylic-urethane, from 90 GU, polishable, with a coverage of 19.29 m²/l, and the clear coat passes the simulated high-pressure water jet erosion test. Base coat 4250 for accent colours and special markings is laid in one thin layer, 50 m²/l at 10 µm, and must be overcoated with clear coat 4450. Alumigrip 4200 gives a single-layer coating from 90 GU with a coverage of 21 m²/l at 25 µm, also compatible with clear coat 4450. Primers 4101 and LV 4105 and filler 10P30-8 are used under the enamels. Qualifications cover Cessna CMFS037/038/039 and CSFS084, Gulfstream GAMPS4002 and GMS 5008, Embraer MEP 10-125 Type I and MEP 10-80, Pilatus PMS0600-52-01, VV0605-28/33, VV0607-22, Piper PMS-F1010 and PPS 25000, Learjet LES 1509.

How to choose

For deep colour use the pair 4400 with clear coat 4450. Accents and special markings are done with 4250 in one thin layer under clear coat 4450. If single-layer painting with high gloss is needed, 4200 is suitable, compatible with the same clear coat. For military polyurethane systems to MIL-PRF-85285 see Aerodur 5000 / 5500 / 58.