VW Golf manuals

Volkswagen Golf Service & Repair Manual: Sprayable sealant

Sprayable sealant -D 476 KD1 M2-, grey
Sprayable sealant -D 476 KD2 M2-, black
Issued 08.2012
Product description
Sprayable sealant -D 476 KD1 M2-/-D 476 KD2 M2- is a spray-on sealant on MS polymer basis which, by absorbing atmospheric moisture, hardens into a rubbery, elastic material with good abrasion resistance.
The time required to form a skin or to cure completely depends on the air humidity and the temperature. The curing time also depends on the coat thickness.
Increasing the temperature and air humidity can reduce these times. Low temperatures and low air humidity, on the other hand, increase them.
Sealant and seam sealant in one
High stability
Can be sprayed or brushed on
May be overpainted with conventional or waterborne paints for up to 3 days after application
Broad range of adhesion without glass or paint primer
High initial stability
May be spot welded
Silicone free
No strong odour
Isocyanate free
Fast complete drying
UV resistant
High resistance to ageing
Sound-dampening properties
Technical data sheet
Sprayable sealant -D 476 KD1 M2-/-D 476 KD2 M2- is used in automotive applications following repairs to seal seams which are sealed during production, e.g. in the engine, luggage and passenger compartments. The Multipress telescopic gun or pneumatic cartridge gun -V.A.G 1761/1- can be used to reach the required load-bearing seam.
The material is also used as a surface coating to repair or supplement PVC underseal or stone chip guard.
The adhesion surfaces must be dry, free of oil, dust, grease and any other impurities. Cleanser FL is good for cleaning.
Adhesion will be improved if the contact surfaces are slightly roughened using an emory pad.
If the material is not oversprayed before complete curing, then procede with paint pretreatment as for plastic pretreatment.
Before using, read the safety measures and recommendations in the safety data sheet.
Even for products which are not required by law to be labelled, the usual safety measures for chemical products must be observed.
Areas of the body to be sealed and adhesion surfaces must be isolated using 2-pack surfacer before the material is applied.
Sprayable sealant -D 476 KD1 M2-/-D 476 KD2 M2- in 310 ml cartridges can be applied only with the Multipress telescopic gun or pneumatic cartridge gun -V.A.G 1761/1-. With these applicators, it is possible to apply the material as a bead of sealant or to spray it, using the dual-circuit air system.
The material may be sprayed as well as brushed on, so that both load-bearing seams and structures obtained by brush can be produced.
New sealing seams may be overpainted after just 15-30 minutes.
With appropriate adjustements to the application equipment, the operator can quickly and easily reproduce all structures as specified by the manufacturer. The spraying distance can be used to vary the width and limit of the seam. Refer to the operating instructions for details on adjusting and using the spray gun.
Cleanser FL is recommended for removing fresh sealant from equipment. Cured material can be removed only mechanically.
Overpainting properties
After a skin has formed, sprayable sealant -D 476 KD1 M2-/-D 476 KD2 M2- can be overpainted with 1-pack and 2-pack repair paints, including alcohol-based paints.
Early overpainting does not prevent curing but does delay it. Do not wait longer than 3 days before overpainting.
Phospate and epoxy resin primers are especially suitable as anti-corrosion primers before sealing or coating. It is important that the primer is dry before anything is applied over it.
If, following accident repairs, the areas of the body to be painted must be treated with a surfacer, a primer surfacer or spray filler, these materials must be coated with sprayable sealant -D 476 KD1 M2-/-D 476 KD2 M2- before further sealing or coating.
If additional filler must be applied after the sprayable sealant -D 476 KD1 M2-/-D 476 KD2 M2- has been further sealed or coated, the sprayable sealant must be at least 6 hours old, and the filler must be suitable for coating plastics.
Sprayable sealant -D 476 KD1 M2-/-D 476 KD2 M2- is not compatible with fresh 1-pack polyurethane material. Polyurethane products must be solidified before being oversprayed with sealant.
The material must not be treated with aromatic solvent systems. This may cause the sealant to partially dissolve or swell.
Technical data
Colour Grey, black
Odour Barely perceptible
Consistency pastos
Density Approx. 1.6 g/cmі
Stability Excellent
Curing type Moisture curing
Skin formation time (standard climate conditions DIN 50014) 8-20 minutes at +23 °C and 50% relative humidity
Curing rate (standard climate conditions DIN 50014) Approx. 4 mm/24 hours and 6 mm/48 hours at +23 °C and 50% relative humidity
Shore A hardness approx. 65
Overpainting compatibility May be overpainted after 20 minutes with 1-pack or 2-pack paints
Adhesive properties Raw sheet metal, galvanised metal, EC paint, top coat, metallic paint, PVC underseal, GFK, PP/EPDM (testing recommended)
Chemical resistance Resistant to light and weather, softening agents of PVC softeners and, briefly, fuel
Working temperature +5 °C to +35 °C
Use temperature -40 °C to +90 °C (+130 °C briefly up to 1 hour)
The material is not sensitive to freezing.
The guaranteed shelf life is 12 months from date of production. May be used until the date stated on the label at latest if stored in sealed original containers at +10 °C to +25 °C.

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