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01-08-51-003D Application of Anti-Corrosion Materials - (Sep 16 2013) Driveline Control 4WD Driveline Control

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Subject:Application of Anti-Corrosion Materials

#01-08-51-003D: Application of Anti-Corrosion Materials - (Sep 16, 2013) Driveline Control 4WD Driveline Control

Models: 2014 and Prior GM Cars and Trucks
  

This bulletin has been revised to add the 2013-2014 model years and update the product/suppliertables. Please discard Corporate Bulletin Number?01-08-51-003C.

After a collision, some vehicle structure areas such as frame rails, cross-membersand rocker panel sections may need to be repaired. In most cases, the anti-corrosionmaterials need to be removed to perform these repairs. These materials are classifiedinto two types: Closed Cavity coatings and Undercoat coatings. The primary differenceis the way the products set up or “dry.” Both are intended to protect the surfacethey are appliedto from corrosion caused by water, salt water or Magnesium Chloride blended de-icingcompounds used to thaw icy winter roads. They also can provide a measure of sounddeadening.

The Closed Cavity coatings remain sticky to the touch and will seep into seams initiallyand over extended periods of time. Closed Cavity coatings provide the best corrosionprotection inside of rocker panel sections, pillar sections, frame rails, cross-members,doors, rear compartment lids and closed areas of hoods – anywhere that is concealedor closed off to exterior surfaces.

The Undercoat coatings are “dry to the touch” and offer the best corrosion protectionand sound deadening for floor pans, wheelhouses, inside rear compartment and underhoodareas – anywhere the coated surface is exposed.

Below is a listing of products and coatings that GM believes to be reliable. Whileothers may exist, we have found these products, or equivalents to them, can be usedwith satisfactory results. Always use these products according to their manufacturer’srecommendations.

Prep Treatment and First Stage Coating

It some instances, repairs may be needed for bare metal or minor surface rust conditions.The phosphate treatment and paint listed below are highly recommended and offer thebest corrosion resistance, when applied as a base coat for the Undercoating/ClosedCavity coatings.

The following products are available from *Lloyds. Contact them at 1-800-361-6766or at sales@lloydslaboratories.com.

Stock Number

Type

Description

Pure Prep™ 25418

Metal Surface Preparation

10?oz. Liquid - Phosphate Cleaner/Conditioner

Kryptonite 36502

Metal Treatment - Life Long Rust Protection

14?oz. Aerosol

Undercoating and Closed Cavity Coatings

The following products are available from *Automotive International/Valugard. Contactthem at 1-800-543-7156, or at www.valugard.net.

Stock Number

Type

Description

VG-104

WAX/SOLVENT BASED UNDERCOAT

Traditional Wax/Solvent based Undercoating available in aerosol or spray gun canister

Meets OE specifications for corrosion resistance

VG-076M

HYBRID (SOLV. / WATER) UNDERCOAT

Meets OE specifications for corrosion resistance

VG-140

WATER BASED UNDERCOAT

Meets OE specifications for corrosion resistance

VG-101

WAX BASED CLOSED CAVITY COATING

Meets OE specifications for corrosion resistance

VG-UCG

CANISTER UNDERCOATING GUN

High quality undercoating gun uses canister packaging of undercoating

VG-CRG

CANISTER CLOSED CAVITY COATING GUN

High quality closed cavity coating gun uses canister packaging of coating and comeswith 30" inner panel application tube with nozzle

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