Question 1

Product Description

Accepted Answer

3M plastic films have been specially developed for material-compatible labeling and allow the film material to be adapted to the substrate to be bonded in order to facilitate subsequent recycling. They can be written on afterwards.

Material
7291 Kimdura: Polypropylene multi-layer composite white matte
7777: Polypropylene white glossy

Adhesive
Self-adhesive on acrylate basis, series AP 360

Adhesive type
PNS (Permanent, Low Temperature, Special Adhesive)

Release liner
siliconized and compressed paper for roll processing

Minimum bonding temperature
+4°C

Question 2

Construction

Accepted Answer

Product
Color / Thickness in mm
Adhesive series / Thickness in mm
Release liner thickness in mm (g/m²)

7291
White matte
0.094
AP 360
0.023
0.081
(81)

7777
White glossy
0.066
AP 360
0.023
0.081
(81)

Question 3

Physical properties

Accepted Answer

Thickness (film + adhesive)
7291: 0.12 mm
7777: 0.10 mm

Temperature resistance
7291: -40°C to +120°C
7777: -40°C to +80°C

Dimensional stability (according to DIN 30646)
no shrinkage

Opacity
covers high-contrast colors of the substrate well

Storage
1 year shelf life in cool, sun-protected rooms at room temperature

Salt spray (according to SS DIN 50021)
150 h / 5% conc. / +35°C; no complaints

Fungus
fungus-resistant, does not promote fungus growth

Substrate corrosion
does not cause corrosion on the bonded substrate

Fire behavior
(tested according to LTV 1500-850, in the bonded state)
self-extinguishing after 15 seconds, does not drip

Question 4

Adhesive strength

Accepted Answer

to stainless steel
to ABS
to polypropylene

7291
12
13.2
12

7777
Adhesive force higher than the internal strength of the foil

Question 5

Resistance to chemicals and solvents

Accepted Answer

The foils are resistant to most mineral oils and greases, fuels, aliphatic solvents, weak acids, salts, and alkalis, such as:

Loading agent
Loading time
Result

Distilled water at +32°C
150 h
no complaints

100% relative humidity at +38°C
150 h
no complaints

Transformer oil at +23°C
1 h
no complaints

Diesel oil at +23°C
1 h
no complaints

Test gasoline at +23°C
1 h
no complaints

n-Heptane at +23°C
1 h
no complaints

Antifreeze at +23°C
(1:1 ethylene glycol and water)
1 h
no complaints

Washing solution at +65°C
(Conc. according to manufacturer&#8217;s instructions)
1 h
no complaints

Cold cleaner at +23°C
(P3 cid mixed 1:19 with water)
1 h
no complaints

Foils bonded to stainless steel, tested after 72 hours of storage in standard climate 23/50, DIN 50014.

Question 6

Post-printing thermal transfer

Accepted Answer

The following ribbon combinations show good printing results:
7291, 7777: Ricoh B110C, Sony 4070, ICS 4099-1

Question 7

Specifications

Accepted Answer

The quality assurance system of the manufacturing plants is certified according to DIN ISO 9002.

Material	7291 Kimdura: Polypropylene multi-layer composite white matte 7777: Polypropylene white glossy
Adhesive	Self-adhesive on acrylate basis, series AP 360
Adhesive type	PNS (Permanent, Low Temperature, Special Adhesive)
Release liner	siliconized and compressed paper for roll processing
Minimum bonding temperature	+4°C

Product	Color / Thickness in mm	Adhesive series / Thickness in mm	Release liner thickness in mm (g/m²)
7291	White matte 0.094	AP 360 0.023	0.081 (81)
7777	White glossy 0.066	AP 360 0.023	0.081 (81)

Thickness (film + adhesive)	7291: 0.12 mm 7777: 0.10 mm
Temperature resistance	7291: -40°C to +120°C 7777: -40°C to +80°C
Dimensional stability (according to DIN 30646)	no shrinkage
Opacity	covers high-contrast colors of the substrate well
Storage	1 year shelf life in cool, sun-protected rooms at room temperature
Salt spray (according to SS DIN 50021)	150 h / 5% conc. / +35°C; no complaints
Fungus	fungus-resistant, does not promote fungus growth
Substrate corrosion	does not cause corrosion on the bonded substrate
Fire behavior (tested according to LTV 1500-850, in the bonded state)	self-extinguishing after 15 seconds, does not drip

	to stainless steel	to ABS	to polypropylene
7291	12	13.2	12
7777	Adhesive force higher than the internal strength of the foil

Loading agent	Loading time	Result
Distilled water at +32°C	150 h	no complaints
100% relative humidity at +38°C	150 h	no complaints
Transformer oil at +23°C	1 h	no complaints
Diesel oil at +23°C	1 h	no complaints
Test gasoline at +23°C	1 h	no complaints
n-Heptane at +23°C	1 h	no complaints
Antifreeze at +23°C (1:1 ethylene glycol and water)	1 h	no complaints
Washing solution at +65°C (Conc. according to manufacturer’s instructions)	1 h	no complaints
Cold cleaner at +23°C (P3 cid mixed 1:19 with water)	1 h	no complaints

Polypropylene Film 7777