Manutenção de plásticos

T.i.s.6.14
Página 1 de 3
17.04.2003
PARTES DE PLÁSTICO DO AUTOMÓVEL
Descrição:
Quando se vai proceder à pintura das peças de plástico, é essencial saber qual a
categoria de plástico a que pertencem: duro, flexível ou mole.
Esta categoria irá determinar o sistema de repintura a utilizar.
O Polipropileno (PP) e o Polietileno (PE) não podem ser pintados.
TIPO DE PLÁSTICO
SMC
BMC
UP-GFK
PP/EPDM
PP/EPM
ABS
PPO
PA
HP-Alloy
Pocan
PC
PUR Flexível
Xenoy
Noryl
PUR Soft
Preparação da
superfície:
Poliéster reforçado com fibra de vidro
Poliéster reforçado com fibra de vidro
Poliéster reforçado com fibra de vidro
Polipropileno modificado
Polipropileno modificado
Acrilonitrilo Butadieno Estireno
Polímero de Óxido de Polifenileno
Poliamida
Mistura de polímeros Honda
Polibutileno Teraftalato
Policarbonato
Poliuretano
Policarbonato
Polifenileno éter
Poliuretano
CATEGORIA
Duro
Duro
Duro
Flexível
Flexível
Flexível
Flexível
Flexível
Flexível
Flexível
Flexível
Flexível
Flexível
Flexível
Mole
Para eliminar quaisquer resíduos de agentes de desmoldagem da superfície de
plástico, lavar com água quente e detergente, utilizando uma escova dura se for
necessário.
Enxaguar com água limpa e secar.
Desengordurar com Antistatic Degreaser (F.T. 6.38)
No caso de plástico duro, matizar a superfície com Scotch Brite tipo A (vermelho) e no
caso de plásticos flexíveis/moles, utilizar o tipo S muito fino (cinzento) em
combinação, em ambos os casos, com Plastic Prep ( -F.T. 6.77)
Enxaguar com água limpa e secar
Desengordurar com Antistatic Degreaser
Matizar com Scotch Brite tipo A ou tipo S
Desengordurar com Antistatic Degreaser
Aplicar Plastoflex Primer (ver F.T.1.6.3) ou Promotor de Aderência 1C P.P (ver
F.T.1.0.0)
t.i.s. 6.14
Page 2 of 3
25.03.2002
Tabela para elastific ação de aparelhos
Produto
1)
2)
Elastificante
Percentagem a acrescentar
ao componente A
Duro
Flexível Mole
Colorbuild
Elast-o-Actif
0%
33%
50%
Autosurfacer Non Sanding
Autosurfacer 940 HS
Autosurfacer Flex
Autosurfacer Flex
0%
0%
50%
50%
x
x
Colorbuild
Elast-o-Actif
0%
33%
x
Autosurfacer 940 HS
Autosurfacer Flex
0%
50%
100%
Húmido sobre húmido :
Lixável:
T.i.s.6.14
Página 3 de 3
17.04.2003
Tabela para elastificação de acabamentos
Produto
1)
2)
3)
Elastificante
Percentagem a acrescentar
ao componente A
Duro
Flexível Mole
Autocryl
Autocryl PLUS
Elast-o-Actif
0%
30%
50%
Autocryl LV 480
Não aditivo
0%
0%
0%
Autobase
Elast-o-Actif
0%
10%
10%
Autobase Plus
Endurecedor P25
0%
0%
10%
Autowave
Não aditivo
0%
0%
0%
Autoclear LV Ultra/Ultra Fast
Não aditivo
0%
0%
0%
Autoclear
Autoclear PLUS
Autoclear MS 1000
Autoclear MS 2000
Autoclear MS 3000
Elast-o-Actif
0%
30%
100%
0%
30%
50%
0%
30%
50%
Não aditivo
0%
0%
0%
Não aditivo
0%
0%
0%
Brilho de uma só camada :
Brilho bicamada:
Acetinado “E” e Mate Matt “M” de uma só
camada:
Elast-o-Actif
“E”
Autocryl/Autocryl PLUS
Autocryl MM 444
100
50
Elast-o-Actif
“M” Autocryl/Autocryl PLUS
Autocryl MM 444
4)
“E”
100
100
Acetinado “E” e Mate “M” bicamada:
Autoclear
Autoclear Mat
100
100
Page 1 of 3
T.i.s.6.14
21/05/2003
FOR PROFESSIONAL USE ONLY
PLASTIC CAR PARTS
When plastic car parts are to be painted, it is essential to know
what type or category of plastic is involved. This category, viz.
hard, flexible or soft determines the paint system to be selected
TYPE OF PLASTIC
CATEGORY
SMC
= Glass fibre reinforced polyHard
BMC
ester
Hard
UP-GFK
= Glass fibre reinforced polyHard
PP/EPDM
ester
Flexible
PP/EPM
= Glass fibre reinforced polyFlexible
EMPP/138
ester
Flexible
ABS
= Modified polypropylene
Flexible
PPO
= Modified polypropylene
Flexible
PA
= Modified polypropylene
Flexible
HP-Alloy
= Acrylonitile Butadiene StyFlexible
Pocan
rene
Flexible
PUR Flexible
= Polyphenylene Oxide polyFlexible
PC
mer
Flexible
PUR Soft
= Polyamide
Soft
Xenoy
= Honda Polymer Alloy
Flexible
= Polybutylene Terephtalate
= Polyurethane
= Polycarbonate
= Polyurethane
= Polycarbonate
Surface prepara• Wash with hot soapy water and / or Autowave Degreaser using
tion:
a stiff brush where necessary i.e. te•tured finishes.
Description:
• Degrease with M 700 / Antistatic Degreaser
• Abrade with Scotch Brite Red / Purple in combination with
Plastic-Prep (see also t.i.s. 6.77)
• Thoroughly rinse with water and dry with a clean cloth
• Degrease with M700 / Antistatic Degreaser
• Apply Plastofle• Primer (see also t.i.s. 1.6.3) or 2K Plastic
Primer (see t.i.s.2.4.4)
Page 2 of 3
T.i.s.6.14
21.05.2003
FOR PROFESSIONAL USE ONLY
PLASTIC CAR PARTS
Category
Hard Flexi- Soft
PRIMING MATERIALS
1) Non Sanding Application:
Autocryl Filler
Elast-o-Actif
0%
50%
Colorbuild
Elast-o-Actif
0%
30%
50%
Autosurfacer Non Sanding
Autosurfacer 940 HS
Autosurfacer Flex
Autosurfacer Flex
0%
0%
33%
x
x
50%
50%
2) Sanding Application:
High Build Filler
Elast-o-Actif
50%
150%
Colorbuild
Elast-o-Actif
0%
x
50%
Autosurfacer 940 HS
Autosurfacer Flex
0%
100%
33%
50%
Category
Hard Flexi- Soft
ble
TOPCOAT SYSTEMS
1)
High Gloss 1-coat :
Autocryl
Elast-o-Actif
0%
50%
30%
Autocryl LV 420
No additive
0%
0%
0%
2) High Gloss 2-coat:
Autobase
Autowave
Elast-o-Actif
No additive
0%
0%
Autoclear
Autoclear MS 1000
Autoclear MS 3000
Elast-o-Actif
0%
10%
0%
10%
0%
100%
30%
Autoclear LV
Autoclear LV Ultra/Ultra Fast
Autoclear Vision
Autocoat LV Flex
No additive
No additive
0%
0%
0%
33%
0%
0%
33%
0%
0%
Page 3 of 3
T.i.s.6.14
21/05/2003
FOR PROFESSIONAL USE ONLY
PLASTIC CAR PARTS
3) Eggshell “E” and Matt “M” 1-coat:
“E” Autocryl
Autocryl MM 444
100
50
Elast-o-Actif
“E” Autocryl LV 420
Autocryl MM 444
100
100
No additive
“M” Autocryl
Autocryl MM 444
100
100
Elast-o-Actif
“M” Autocryl LV
Autocryl MM 444
100
200
0%
50%
30%
0%
0%
0%
0%
50%
30%
No additive
0%
0%
0%
4) Eggshell “E” and Matt “M” 2-coat:
“E” Autoclear
Autoclear Matt
100
100
No additive
“E” Autoclear LV Ultra/
Ultra Fast
100
Autoclear Matt
100
No additive
0%
0%
0%
0%
0%
No additive
“M” Autoclear Matt
0%
0%
100
0%
0%
No additive
0%
0%
0%
Process: For application of elasticised products see corresponding datasheets
IMPORTANT
Q
The effectiveness of our systems is based on years of experience and laboratory research Nevertheless, we cannot accept, without
prior investigation, any responsibility for the work produced according to these systems as the final result also depends on factors
beyond our control.
Q
Before you use this product you must read and be familiar with the specific Health and Safety information that relates to this product
and its uses. If you are not in possession of the Akzo Nobel Sikkens Health & Safety information please contact your local Akzo Nobel
Sikkens distributor.
AKZO NOBEL COATINGS LTD, CAR REFINISHES 136 MILTON PARK, ABING DON, OXFORDSHIRE
OX14 4SB TEL: (01235) 862226
TECHNICAL DATA SHEET
Page 1 of 3
April 2004
TEST METHODS FOR PLASTICS IDENTIFICATION
TEST METHODS
FOR PLASTICS
IDENTIFICATION:
The common plastics used in the auto industry can normally be identified by a
marking on the back of the part. When this marking cannot be found, there are two
tests that work fairly well to help determine whether to use Primer PO or Plastoflex
Primer. These tests are as follows:
1. Burn Test
2. Float Test
BURN TEST:
Shave off a small sliver of plastic from the back of the part. Ensure that the part is
free of paint, mold release agent, or any other coating. Hold one end in a tweezers
and light the other end of the sliver.
If the sliver burns with a black heavy smoke or releases spirals of smoky plastic, it
indicates the use of Plastoflex Primer. If the sliver burns clean with no smoke (like
that of a candle), it indicates the use of Primer PO.
NOTE:
Conduct this test in a safe, ventilated environment.
FLOAT TEST:
Shave off a small sliver of plastic from the back of the part. Ensure that the part is
free of paint, mold release agent, or any other coating. Submerge the sliver in a
glass of water. If the sliver floats, it indicates the use of Primer PO. If the sliver
sinks or submerges, it indicates the use of Plastoflex Primer.
Primer PO
Plastics = PO
= PP
= PE
= PP/EPDM
= PP/EPM
= TPO
Burns = clean like candle
Float = floats
SANDING:
Plastoflex Primer
Plastics = SMC
= BMC
= GFK
= PC
= PP/EPDM
= PP/EPM
= ABS
= PPD
= PA
= HP-Alloy
= PUR
= P.D.T.
= TPU
Burns
= heavy black smoke
Float
= sinks or submerges
—Prior to Primer PO, abrade the panel or part to be painted with a grey scuffing
pad and Sikkens Plastic Fix.
—Prior to Plastoflex Primer; sand the panel or part to be primed with #P360 grit
paper dry or #P500 to #P600 wet. These parts may also be prepared with a red
scuffing pad and Sikkens Plastic Fix.
TECHNICAL DATA SHEET
Page 2 of 3
April 2004
TEST METHODS FOR PLASTICS IDENTIFICATION
(PREPARATION AND PAINT SYSTEMS)
FLEXIBLE
PLASTICS:
Pretreatment:
— As the refinishing of flexible plastic parts requires the highest consideration from
the technician, it is necessary to assess the plastic part that is being refinished.
Please refer to the heading, “Test Methods for Plastic Identification” to determine
the type of plastic that is to be refinished. The technician should address the
situation by using the guidelines as follows:
FINISHING OF NEW REPL ACEMENT PLASTIC PARTS
OEM
And
AFTER MARKET
PRIMED
UNTREATED
SOLVENCY TEST
Wash with hot soapy water
Anti-Static Surface Cleaner
Stable
Dissolves to solvent
Anti-Static
Surface Cleaner
Autoclean
Surface Cleaner
Sand, #P400 grit dry
or red scuff pad
Sand, #P400 grit dry
or grey scuff pad
with Plastic Fix
Polyolefin type
Grey scuff pad
with Plastic Fix
Urethane type
sand, #P400 grit
or red scuff pad
with Plastic Fix
Anti-Static
Surface Cleaner
Autoclean
Surface Cleaner
Anti-Static
Surface Cleaner
Colorbuild +
Elast-O-Actif
Colorbuild +
Elast-O-Actif
Allow to dry out for
Topcoat + Elast-O-Actif
Extend flash time to
30 minutes at 70°F (20°C)
Primer PO
or Plastoflex Primer
Topcoat + Elast-O-Actif
* After the application of Plastoflex Primer or Primer PO, if the filling
qualities of Colorbuild are required, proceed. Remember, Elast-OActif should be added to Colorbuild for flexible parts.
20–30 minutes
*
Topcoat + Elast-O-Actif
TECHNICAL DATA SHEET
Page 3 of 3
April 2004
TEST METHODS FOR PLASTICS IDENTIFICATION
(PREPARATION AND PAINT SYSTEMS)
REPAIRING EXISTING OEM PLASTIC PARTS
Repair Damage if Necessary
Use 2-Component Plastic Repair Filler
Feather Edge
With #P320 Grit Paper Dry
Final Sand with #P400 Grit Paper Dry
Good feather edge
Peeling feather edge
Anti-Static Surface Cleaner
Remove existing finish
Allow to dry out
for 20 – 30 minutes
Anti-Static Surface Cleaner
Primer PO
or Plastoflex Primer
on exposed plastic
Sand, #P400 grit
or red scuff pad
with Plastic Fix
Colorbuild
+ Elast-O-Actif
Anti-Static Surface Cleaner
Topcoat +
Elast-O-Actif
Allow to dry out
for 20 – 30 minutes
Plastoflex Primer
or Primer PO
Colorbuild
+ Elast-O-Actif
Topcoat +
Elast-O-Actif
Having decided on the type of repair system for the plastic part
worked on, apply the necessary products to complete the job.