Cilbond® 26

Identification

Carrier

Water

GBU

EA

RTU Product Type

1K (1 component) Adhesive,

Solventborne Adhesive

Categories

Markets → Automotive & Transportation → Applications → Automotive → Electrical & Electronic Systems

Markets → Automotive & Transportation → Applications → Bonding & Assembly → Transportation Assembly

Technologies → Adhesives & Sealants → Product Families → Bonding Technology → 1K Liquid Reactive Adhesives

Technologies → Adhesives & Sealants → Product Families → Bonding Technology → Contact Adhesives

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

Application Information

Cure Method

Heat Cure

Applications

Application Area

Electric Vehicle (EV),

Industrial Assembly,

Automotive Applications,

Transportation Application

Application Method

Dip Coating,

Brush,

Spray,

Roll Coater,

Nozzle

Compatible Substrates & Surfaces

Glass,

Metal,

Plastics,

Elastomers & Rubbers,

Polyesters,

Polyamide,

Styrene Butadiene Rubber (SBR),

Chloroprene Rubber (CR),

Natural Rubber,

Ethylene Vinyl Acetate (EVA),

Chlorosulfonated Polyethylene Synthetic Rubber (ACSM),

Butadiene Rubber (BR),

Isoprene Rubber (IR),

Polyacrylate Rubber (ACM),

Ethylene Acrylic Rubber (AEM),

Epichlorohydrin Rubber (ECO),

Hydrogenated Acrylonitrile Butadiene Rubber (HNBR),

Carboxylated Nitrile Butadiene Rubber (XNBR),

Fabrics,

Polynorbornene,

Rubber,

Glass Fibre Reinforced Polymer (GFRP)

Segment

Rubber to Metal

Applications & Uses

Processing Information

Suitable Elastomers

• Natural rubber (NR)
• Styrene butadiene rubber (SBR)
• Chloroprene Rubber (CR)
• Polybutadiene (BR)
• Synthetic polyisoprene rubber (IR)
• Polyepichlorohydrin (ECO)
• Polyacrylate rubbers (ACM)
• Chlorosulphonated polyethylene (CSM / ACSM)
• Carboxylated NBR (XNBR)
• Ethylene vinyl acetate EVA (EVM)
• AEM/Vamac G

Suitable Substrates

• Various surface treated metals
• Glass fibre reinforced plastic (GFRP)
• Various metals
• Polyamide (PA)
• Polyester (PES)
• Various other substrates

Consistency

• Liquid

Surface Requirements

• Free of rust
• Grit blasted or other approved surface treatments
• Dry
• Clean
• Free of grease
• Free of dust
• Free of oil

Application Method

• Spraying
• Dipping
• Roller coating
• Brushing

Usage Information

Agitation: Stir thoroughly before use, preferably with a high-speed propeller type stirrer.
Brushing: Application by brushing is normally undertaken without further dilution, but for coating large areas dilute with 10-15% Toluene, Xylene or MEK.
Two thin coats are preferred to one thick coat.
Dipping: For dip application of Cilbond® 26, dilution is necessary to reduce the viscosity to a level where correct film formation may be achieved. Dilute with Xylene to the following
viscosities : Viscosity Guide at 26°C :- DIN 4 Cup : 18 - 24 sec
                                            Ford 4 or Frikmar Cup : 18 - 24 sec
                                                       Zahn Cup No 2 : 24 - 28 sec

At these viscosities Cilbond® 26 may require as much as 25-40 part of diluent to 100 parts of Cilbond® 26. If faster drying and thicker coats are required, replace all or part
of the diluent with MEK or MIBK. After dilution we recommend stirring on a continuous basis.
Spraying: For spray applications, xylene is the preferred diluent, especially for reducing/eliminating cob webbing/fibre formation. Dilute to the following viscosities :
                  Viscosity Guide at 26°C :- DIN 4 Cup : 13 - 20 sec
                      Ford 4 or Frikmar Cup : 13 - 20 sec
                                 Zahn Cup No 2 : 16 - 24 sec

This may require as much as 30-50 part of diluent to 100 parts of Cilbond® 26. MEK/Xylene and MIBK/Xylene blends are particularly effective diluents for spraying, especially where automated rapid processing is employed. Typically, use 1.5 - 2.0 bar air pressure with a fluid pressure of 0.5 - 1.0 bar, a nozzle size of 1.0 – 1.5mm when using an HVLP system, which is the preferred method of spray application. Note that excessive air pressure can cause fibrillation (cob-webbing).
Roller Coating: The viscosity of Cilbond® 26 is close to that required for many roller coating applications, so little or no diluent is normally required. Fast drying solvents, such as MEK, are often the preferred for dilution.
Dilution: Toluene and especially Xylene are the main diluents for Cilbond® 26. Other diluents, which may be useful include MEK, MIBK, trichloroethane and glycol ether esters, such as MPA. MEK and MIBK are best used in solvent blends with toluene or xylene. Regardless of which diluent is chosen, it is imperative that the cement be stirred vigorously
whilst diluent is being added, otherwise gellation may result.
Drying: At room temperature drying takes 30 - 45 minutes. If the temperature is abnormally low, longer times will be required. Forced drying may be employed if desired to speed the operation. Large volumes of warm air will reduce the drying time to <<2 minutes and temperatures up to 70°C may be employed as necessary. Forced drying is a recommended process for Cilbond® 26.
Pre-Baking: Cilbond® 26 exhibits excellent pre-bake resistance and though this is partly compound dependent, Cilbond® 26 can resist pre-bakes up to or even over 30 minutes at 160°C.
Film Thickness: Irrespective of the method of application for the bonding agent, it is vital to lay down as uniform a film as possible to obtain optimum and uniform bond strength results.
We recommend the following :
General Purpose Bonding : 15 – 20 microns (dry coating thickness)
Superior Environmental Resistance : 20 – 30 microns (dry coating thickness)
In many cases, as for most so called one-coat systems, it is usually double applied.
Moulding: Cilbond® 26 resists wiping and mould fouling and may be used with all moulding methods including compression, transfer, injection and extrusion moulding. Temperatures required to effect a bond may vary from 120-230°C. Fully dried Cilbond® 26 show virtually no mould fouling or wiping/melt flow.

Features

Ready-to-Use Product Features

Acid Resistant,

Alkali Resistant,

Chemical Resistant,

Excellent Mineral Oil Resistance,

Excellent Salt Spray Resistance,

Fuel Resistant,

Good Fuel Resistance,

Good Glycol Resistance,

High Fatigue Resistance,

High Performance,

Steam Resistant,

Temperature Resistance,

Pre-bake Resistance,

Hot Water Resistance,

Easy To Apply,

Weak Acid Resistant,

Boil Water Resistance,

Good Hot Oil Resistant,

Ethylene Glycol Resistance,

Kerosene Resistance,

Synthetic Ester Turbo Oil Resistance,

Excellent Bond Performance,

Propylene Glycol Resistance,

Petroleum Spirit Fuel Resistance,

Unleaded Petrol Resistance

Features & Benefits

Labeling Claims

Toluene-free

General Properties

Product Benefits

• Excellent adhesion to rubber (e.g. NR, SBR, CR, BR, IR, AEM, ECO, CSM/ACSM, ACM, XNBR, EVM)
• Cilbond 26 (R-7035) can be used on any metal surface including steel, aluminium, phosphated and plated parts
• Excellent resistance against salt-spray, water immersion, boiling water, steam up to 130°C, hot oils, fuels, glycols and hydraulic fuels up to 180°C
• Resistant to various chemicals, such as petrol, oils, greases
• Excellent static and dynamic fatigue resistance
• Excellent adherence to various substrates
• Easy application
• Minimal mould fouling
• Excellent pre-bake resistance
• Can be used for post vulcanisation bonding
• Coated parts can be swaged
• Excellent heat resistance
• Excellent low temperature resistance

Type of Product

• One-coat
• Bonding agent

Curing

• Heat curing

Parts

• One part system

Color

• Black

Packaging & Availability

Regional Availability

• Global

Packaging Information

Cilbond® 26 is supplied in 10L, 25L and 200L containers. 250ml trial samples are also available upon request.

Physical Properties

Physical Form

Liquid

Appearance

Black liquid

Properties

Density:

960.0 kg/m³

Shelf Life:

12.0 months

Specific Gravity:

0.96

Typical Physical Properties

	Value	Units	Test Method / Conditions
Bonding Temperature Range	120 - 230	°C	-
Dry Film Thickness (dry)	min. 15	microns	-
Typical Coverage (at 15 microns)	15	m²/L	-

Processing Parameters

	Value	Units	Test Method / Conditions
Dilution (Typically. Add whilst product is stirring)	20 - 40	%	-
Drying Time (at 23°C)	30 - 45	m	-
Drying Time (at 60°C)	5	m	-
Moulding Temperature Range	120 - 230	°C	-
Optimum Dry Coating Thickness (for general purpose applications)	15 - 20	µm	-
Optimum Dry Coating Thickness (for maximum environmental resistance)	20 - 35	µm	-
Service Temperature	- 50 - 200	°C	-
Storage Temperature	1 - 25	°C	-
Typical Coverage (at 20 µm dry coating thickness)	15	m²/l	-
Viscosity (at 26°C)	25	sec	Cup 4, DIN 53211

Physical Properties

	Value	Units	Test Method / Conditions
Density	0.96	g/cm³	-
Flash Point	- 6	°C	Abel Pensky Method
Solid Content	25	wt%	-

Appearance

Black liquid

Regulatory & Compliance

Certifications & Compliance

ISO 9001

Storage & Handling

Storage Conditions

Cilbond® 26  (R-7035) should be used within the shelf life specified on the packaging. The storage stability applies to material stored under appropriate conditions only (original unopened containers, recommended storage temperature).

Shelf Life

12 months