Volkswagen Golf Service & Repair Manual: Sprayable sealant
| Sprayable sealant -D 476 KD1 M2-, grey |
| Sprayable sealant -D 476 KD2 M2-, black |
| 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 |
| 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 resistance to ageing |
| Sound-dampening properties |
| 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. |
 Note
| 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. |
Note
| 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. |
| 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. |
|
|
|
| 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. |
|
|
|
Designation:
Polyurethane adhesive sealant (bonding compound) -AKD 476
KD5 05-
Issued 04.2009
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Polyurethane adhesive sealant (bonding compound)
Adhesive sealant