H.B. Fuller

Identification

Carrier: Solvent-based
GBU: HHC
RTU Product Type: Laminating Adhesive,

2K (2 component) Adhesive,

Solventborne Adhesive,

Polyurethane (PU) Adhesive

Categories: Markets → Printing & Packaging → Applications → Packaging → Food & Beverage Packaging

Markets → Printing & Packaging → Applications → Tapes, Labels & Adhesives → Flexible Packaging Adhesives

Technologies → Adhesives & Sealants → Product Families → Bonding Technology → 2K Liquid Reactive Adhesives

Technologies → Adhesives & Sealants → Product Families → Bonding Technology → Solvent-Based Nonreactive Adhesives

Technologies → Adhesives & Sealants → Product Families → Bonding Technology → Solvent-free Adhesives

Technologies → Adhesives & Sealants → Product Families → Bonding Technology → Water-Based Adhesives

Applications

Application Area: Food Packaging,

Foils,

Polyolefin Films
Compatible Substrates & Surfaces: Polyesters,

Nylon,

Polypropylene (PP),

Polyethylene (PE),

Polyethylene Terephthalate (PET),

Polyolefins,

Aluminum Foils
Segment: Flexible Packaging

Applications & Uses

Combining Information

Increased temperature of the nip roller improves wetting and transparency of the laminates. Depending on kind of laminated films and machine speed nip temperatures of 40°C – 70°C are recommended.

Mixing Instruction

SBA 5250 + XA 3350 should be diluted to the desired solid content according following table:

SBA 5250	30%	35%	40%	45%	50%
Solvent	100	100	100	100	100
XA 3350	131	92	62	39	20
Total	47	47	47	47	47
Viscosity (sec/DIN 4mm)	278	239	209	186	167
Solvent Ethyl Acetate	12	13	15	17	22

Product Applications

Retort pouches
Pet food pouches
Pharmaceutical blister packages
High heat / chemical resistance

Product Applications

SBA 5250 + XA 3350 is suitable for lamination of printed and unprinted, transparent, metallized and aluminium foil containing triplex structures. SBA 5250 + XA 3350 can be used for lamination of aluminium foil, polyester, coated cello, nylon, polyethylene, oriented and Cast-polypropylene as well as SiOx or AlOx coated webs.
Structures laminated with SBA 5250 + XA 3350 are resistant to boiling, pasteurisation, sterilisation and show good resistance to aggressive packed goods. Structures laminated with SBA 5250 + XA 3350 show after curing high bond strength and good heat resistance.
SBA 5250 + XA 3350 is suitable for lamination of olefin films with high content of slip additive (500 ppm erucamide calculated on 70μ film thickness).

Features

Ready-to-Use Product Features: Good Bonding Strength,

Heat Resistance,

High Performance,

High Solids Content,

Low Migration,

Pasteurization Resistance,

Room Temperature Curing,

High Bond Strength,

Boiling Resistance

Features & Benefits

Labeling Claims

Aromatic Amines-free,

Bisphenol A-free,

Amine-free,

Organotins-free,

Epoxysilane-free,

Cyclic Ester-free

Key Features

Superior bonding properties
High-speed lamination possible
Room temperature cure
High solids content
Broad food safety (FDA and EU compliance)
Lowest migration level
Superior bonding
Room temperature cure

Packaging & Availability

Regional Availability

Global

Properties

Additional Information

It is recommended that the converter does his own lamination trials and tests of the resulting laminated structure because additives, especially out of polyolefin films and printing inks, can affect the properties of the structure immediately or later. For olefin films corona-pre-treatment is necessary. Corona-pre-treatment of polyester- and nylon-films improves wetting and adhesion.

Cross Linking Properties

The cross-linking reaction starts immediately after lamination, rewind and slitting often might be possible after 24 to 48 hours. Laminates manufactured with SBA 5250 + XA 3350 should be cured at 40°C – 45°C for 5 days. Final cure at ambient temperature is achieved approx. 7 to 10 days after lamination.

Typical Properties


	Value	Units	Test Method / Conditions
Coat Weight (printed film/film-laminates, standard)	3.0 - 3.5	g/m²	-
Coat Weight (problematic printing inks vacuum packing, boil in bag and aggressive packed goods)	4 - 5	g/m²	-
Coat Weight (unprinted film/film-laminates, standard)	2.2 - 2.5	g/m²	-
Pot Life	8	hours	-
Specific Gravity	0.99	-	-
Web Temperature	50 - 65	°C	-

Component B


	Value	Units	Test Method / Conditions
Solids Content	49 - 51	%	-
Specific Gravity	0.99	-	-
Viscosity (at 20°C)	11 - 13	seconds	DIN 4mm

Component A


	Value	Units	Test Method / Conditions
Solids Content	59 - 61	%	-
Specific Gravity	1.02	-	-
Viscosity (at 25°C)	500 - 1000	mPa.s	-

Specifications


	Value	Units	Test Method / Conditions
Mix Ratio (by volume)	100:48	-	-
Mix Ratio (by weight)	100:47	-	-
Mix Viscosity (at 40°C)	approx. 1200	mPa.s	-

Regulatory & Compliance

Certifications & Compliance: FDA 21 CFR 177.1390
Food Contact Status: SBA 5250 + XA 3350 can be used to produce flexible packaging material intended for use in food packaging. Detailed information on specific regulations are available upon request.

Safety & Health

Safety Instructions: SBA 5250 + XA 3350 are highly flammable. The products should be stored at a dry and cool place.

Storage & Handling

Pot Life: The dynamic pan stability of the mixed adhesive is more than 24 hours, a fresh mix should be made every 8 hours.
Storage Conditions: The product SBA 5250 + XA 3350 maintains its stability in an unopened original container until the shelf life date indicated on the product label. Once opened, the containers – especially XA 3350 – must be used within 24 hours. Opened containers should be well closed again.

Technical Details & Test Data

Coating Weight

Unprinted film/film-laminates, standard	2.2 – 2.5 g/m²
Printed film/film-laminates, standard	3.0 – 3.5 g/m²
Problematic printing inks vacuum packing, boil in bag and aggressive packed goods	4.0 – 5.0 g/m²

Drying Information

A web temperature of 50°C – 65°C with good air volume is usually adequate for complete solvent removal.

Flextra® SBA 5250 + XA 3350

Enhanced TDS