Elastic adhesive | Super X

Cemedine Super X is an innovative one-part, quick cure adhesive with three key features: "Pressure-sensitive adhesion", "Elastic adhesion" and "Solvent-free adhesion", which are the ideal properties of adhesives. It is used around the world.

Features

Multi-purpose adhesive for high-performance bonding of numerous materials.

Super X products allow for adhesion of various types of plastics, rubbers and ceramics over an extensive range, and also over different types of metals. These products provide excellent adhesion over a very extensive range of materials, eliminating the need for selecting a particular adhesive for each type of material, as in the case of conventional adhesives.

One-part solventless type providing quick curing at room temperature

Curing reaction is caused by moisture absorbed from the air. Pressure-sensitive range is reached in this curing process about 10 min after application. If adherends are put together during this time, they bind instantaneously as in the case of rubber contact adhesive, eliminating the need for temporary fixation. Easy-to-use, safe, and clean adhesive featuring one-part solventless capable of quick curing at room temperature is provided.

High durability

Super X as elastic adhesives does not peel off. Once materials are adhered, Super X provides durability in the range from low temperature (-60°C) to high temperature (120°C). Because of the rubber state of the hard film, the Super X sufficiently follows expansion, shrinkage and other changes of adherends.

Siloxane-free

There is not including low molecular weight cyclosiloxane. (D3 to D10 Cyclosiloxane compound)

Application

• For bonding application that requires initial rise strength.
• For bonding applications of dissimilar materials with different coefficients of thermal expansion.
• For bonding applications that require durability, such as thermal cycling.
• There are two ways to use: single sided and double sided. 
  Please use properly depending on the material and the conditions to be attached.

[Method 1: Single-sided application]

• In the case of porous material.
• In the case of the bonding area is small.

[Method 2: Double-sided application (like contact cement)]

• In the case of non-porous materials such as metal, plastic and ceramic.
• When the initial rising adhesion strength is required, such as warped parts, adhesion to vertical surfaces, adhesion of heavy materials, etc.

Initial curing process

Representative test data

Initial curing speed by environmental temperature

Tensile shear strength on each temperature

Tensile shear strength after heat aging

Tensile shear adhesive strength after High-temperature and High-humidity

Adhesive strength for various types of adherends

(MPa)

Adherends		Tensile shear adhesive strength  after 7-day curing
Metal	Steel plate (SPCC, SPCD)	3.32	CF
	Aluminum(*1)	4.26	CF
	Stainless steel	2.24	AF
	Copper	3.62	CF
Plastics	Polycarbonate	3.29	CF
	Bakelite	4.43	CF
	ABS	3.10	CF
	Unplasticized polyvinyl chloride	3.08	CF
	Styrene	2.40	CF5 AF5
	Acryl	3.22	CF
	6-nylon	3.28	CF
	FRP(*2)	2.92	CF
	Polypropylene(*3)	2.77	CF5 AF5
	PET(Polyethylene terephthalate)	2.22	CF3 AF7
	PPS(Polyphenylene sulfide)	1.60	AF
	PPO(Polyphenylene oxide)	3.16	CF
	PAR(Polyarylate)	1.10	AF
Others	Slate	1.01	MF
	Plywood	3.60	CF

CF:Cohesion Failure, AF:Adhesive Failure, MF:Failure Modes

Coated on both sides, 50µm thick (one side),tension speed between adherends: 50mm/min

*1 and *2: Surface preparation causes adhesive strength to become uneven; it must be confirmed in advance. 
*3: Primer (Cemedine PP-7F) to be used.

Adhesive strength for various types of rubbers

(N/mm)

Adherends		Peeling adhesive strength  after 7-day curing
Rubbers	NBR	0.27	AF
	Silicone rubber	0.45	AF
	EPDM	0.60	AF
	EPDM(*)	2.73	CF
	CR (Chloroprene rubber) (*)	0.43	AF

(*)…Degreasing by MEK after treatment by sandpaper (#120)

Chemicals resistance

(MPa)

Chemicals	Tensile shear strength  after dipping in chemicals
Initial Value	2.24	AF
Water	3.00	CF5 AF5
Acetic acid (1% water solution)	2.05	CF4 AF6
Acetic acid (10% water solution)	1.22	CF3 AF7
Sulfuric acid (3% water solution)	2.93	CF2 AF8
Sulfuric acid (30% water solution)	2.05	AF
Sodium hydroxide (1% water solution)	2.84	CF5 AF5
Sodium hydroxide (10% water solution)	3.29	CF2 AF8
Machine oil (Idemitsu: Mechanic Oil)	2.96	CF5 AF5
Salt (10% water solution)	3.16	CF4 AF6
MEK*	0.11	AF
n-Hexane*	0.56	AF

CF:Cohesion Failure, AF:Adhesive Failure  

Adherends : Stainless steel x Stainless steel  
Surface preparation : Degreasing with MEK 
Coating quantity : Coated on both sides 50μm thick (per side)  
Open time : 2 min  
Pressing : 2 pinches  
Curing : 23°C50%RH x 7 days  
Chemical immersion : 23°C x 7 days  
Tension speed : 50 mm/min  
Destruction State : Confirmation by seeing  
*… Deterioration of solvent is observed, but no problem with short-time contact, for example, in washing.

Property

			Super X No.8008
			White	Black	L Black	LL Black	Clear
Type			One component type Elastic Adhesive
			Standard type		Low viscosity type		Clear type
Base			Special polymer containing silyl group
Appearance			White paste	Black paste			Light yellow clear paste
Viscosity		Pa･s/23°C	85.0	85.0	22.0	19.0	82.6
Specific gravity		g/cm3	1.27	1.27	1.25	1.22	1.07
Skin over time		23°C	11min	11min	11min	12min	8.5min
Adhesive property	Tensile shear adhesive strength	MPa	4.0	4.0	3.5	3.3	3.5
	T type peeling adhesive strength	N/mm	2.0	2.0	2.1	1.0	3.4
Curing properties	Hardness	Shore A	43	43	35	34	50
	Glass transfer point	°C	-63	-63	-68	-59	-64
	Breaking strength	MPa	2.5	2.5	1.3	0.9	4.0
	Elongation at break	%	200	200	320	200	170
Electric Characteristics	Volume resistivity	Ω･cm	1.1 x 1012	4.7 x 1011	1.2 x 1012	1.0 x 1012	1.3 x 1012
	Dielectric constant	100Hz	6.15	7.07	6.99	6.56	3.89
	Dielectric loss tangent	100Hz	0.22	0.34	0.24	0.25	0.11
Grade
Capacity			170g	170g	170g		135ml
			333ml	333ml	333ml	333ml	333ml