Desothane

HS CA8800 Polyurethane Topcoats

Product Description

Desothane

HS Buffable topcoats are polyurethane coatings used to protect the exterior

of aircraft. These high solids topcoats are designed to be applied over Desoprime™

epoxy primers and Desofill™

surfacers.

 Compatible with epoxy primers, surfacers, and intermediate coating

 May be buffed to remove minor imperfections

 Excellent gloss and image reflection

 Retains gloss and color in harsh exterior environments

 Can be applied in a wide range of conditions

 Excellent impact and erosion resistance

 Compatible with all current spray equipment

 Skydrol

resistant

 Service temperature -54°C to 177°C (-65°F to 350°F)

Components

Mix ratio (by volume) for gloss colors:

 CA8800/XXXX (base component)

 CA8800Z (activator component)

 CA8800CT (thinner component)

2 parts

1 part

Note: Desothane

HS Buffable thinners are available in various options based on dry

time requirements: CA8800CT, CA8800CTR, CA8800CT1, CA8800CT2, CA8800CT3,

CA8800CT4 and CA8800CT5

Specifications

CA8800 series topcoats are qualified to:

 AMS 3095

 GAMPS 3209

 BAMS 565-009 Grade B Type II

 MEP 10-069

 BMS 10-125 Type III & VI

Grade D

 MM1276 Type II

 MS100029E Class HS

 DHMS C4.04 Type 6 Class B

Grade B

 PAI 3760

 VMS C4.04

CA8800 series topcoats meet the requirements of:

 BMS 10-60 Type II Class B

Grade D

 BMS 10-125 Type III Grade D

 BMS 10-126 Type I Grade D

 BMS 10-72 Type VIII

CA8800 series topcoats are listed on the following process standards:

 D6-1816

 DPM 6546

Page 2

CA8800

Note: PPG Aerospace recommends you check the most recent specification QPLs for

updated information.

Product Compatibility:

CA8800 topcoats are compatible with the following primer specifications:

 299-947-322 Type I

 HMS 16-1738

 AMS 3095

 HMS 16-2122

 BAMS 565-008 Grade A & B

Type II

 MEP 10-060 Type I & II

Class A & B

 BMS 10-72 Type VIII & IX Class

 MEP 10-068 Class A & B

 MEP 10-070

 BMS 10-79 Type II & III

 MM1275 Type I & II

 BMS 10-103 Type I Grade A

 MS100016E Class S

 BMS 10-118 Type I & II Grade B

 PWA 36525 Type 1

 BMS 10-123 Type I Grade B

 SMS-111204 Type 1 Class 1

 CMS-CT-201 Class A & B

Form 1 & 2

Grade A & B

 SMS-111207 Type 7

 CMS-CT-206 Type I Class A

 STMGK 189

 DHMS C4.01 Type 3 Grade A

 TCE-M-20710-14

 DHMS C4.18 Type III Class A

Grade B

 GAMPS 3103

 VMS C4.01 Type 3 Grade A

 VMS C4.18 Type 3 Class A

Grade B

 GP110AEE

Surface Preparation and Pretreatments

CA8800 high solids topcoats can be applied over clean, dry, intact urethane compatible

epoxy primers, surfacers, or intermediate coating. The surface may be cleaned with

DeSoto

CN20, DeSoto

CN44, or Desoclean™ 110 solvent cleaner. Observe over

coating window for primers or intermediate coating. For further information, refer to the

Technical Data Sheets for the above mentioned primers and intermediate coating.

Instructions for Use

Mixing Instructions:

Prior to mixing, thoroughly shake the base component. Add one volume of CA8800Z

buffable activator component to two volumes of base component and stir well. While

mixing, add one volume of CA8800CT series thinner component and maintain constant

agitation for 10 minutes. CA8800CT series component must be added to ensure

adequate pot life and spray properties.

Note: It is important to condition the paint for 24 hours prior to mixing by placing all

materials in the shop or hangar, with ambient temperatures between 13° and 35°C (55°

to 95°F). The minimum temperature of the paint components should be 13°C (55°F)

prior to mixing.