TECHNICAL DATA. ThreeBond 3055 & 3055B. Acryl UV Hardening Adhesive. Features. Applications

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1 TECHNICAL DATA ThreeBond 3055 & 3055B Acryl UV Hardening Adhesive Three Bond 3055 is a structural type adhesive, which can be cured when irradiated with ultraviolet ray of 300 ~ 400 nm. It can also be cured under action of primer, Three Bond Those parts that are exposed can be cured with ultraviolet light. The cured material is flexible and hence, has high impact resistance and good peel strength. Good adhesion can be achieved with special metals, glass, ceramic and various plastics. Features Cures under ultraviolet light (500 mj/cm 2 tack free) Fast curing (cures within 2~3 minutes using primer) Good adhesion strength Good moisture resistance Good impact and thermal shock resistance Good heat resistance Good adhesion strength, even with oily surface Ability to fill the clearances (1 mm thick) Low smell, and toxicity. (PII 0.0) Applications Bonding of Fixing of magnet rotary lens Stator coil and glass epoxy base ferrite core and motor chip parts screws end of coil pincer of LCD Sealing of switch-terminals 1/6

2 Characteristics Before Cure Item TB 3055 TB 3055B TB 3097 Main Component Modified Acrylate Modified Acrylate Modified Acrylate Appearance Light yellow liquid Light green liquid Yellow liquid Viscosity (25 C) 15 Pa.s {150P} 15 Pa.s {150P} 3 mpa.s {3cP} Specific Gravity After Cure Item Units TB 3055, 3055B Remarks Hardness 70 Shore D Elongation % 150 Tensile Strength MPa {kgf/cm 2 } 39 {400} Thermal Expansion Coefficient / C 13 x 10-5 Glass Transition Point C 80 Shrinkage on curing % 8.1 Water 25 C x 24h % +2.2 Absorption Boiling 1h % +3.8 Volumetric Resistivity Ω.cm 4.60 x Surface Reistivity Ω 2.24 x Dielectric constant MHz Dielectric dissipation factor MHz Dielectric breakdown voltage kv/mm 14.2 Irradiation Method High-pressure mercury lamp (HMW244-11cm type) 80 mw/cm 2, main wavelength 365 nm Dose 2000 mj/cm 2 2/6

3 Adhesion Strength Curing with ultraviolet light Product Name TB 3055, 3055B Remarks Hardening condition (tack free) Cured thickness (maximum 500 mj/cm 2 (2mm) 6 mm Glass/Fe *9.8 {100} Acrylic/Acrylic *4.9 {50} Shear Strength Acrylic/ABS *4.9 {50} MPa {kgf/cm 2 } Acrylic/Fe *4.9 {50} Acrylic/Phenol *4.9 {50} * Material broken Irradiation Method High-pressure mercury lamp (HMW244-11cm type) 80 mw/cm 2, main wavelength 365 nm Dose 2000 mj/cm 2 Curing with primer (Three Bond 3097) Curing Speed (primer applied onto one side) Curing time (h) Shear Strength MPa {kgf/cm 2 } 8.4 {86} 9.2 {94} 12.0 {122} 12.8 {130} 17.1 {174} 20.6 {210} Note: Curing time will differ depending on the clearance and the amount applied. Clearance (primer applied to one side) Test Units Clearance (mm) Results Shear strength MPa {kgf/cm 2 } {240} {220} T-shape peel strength kn/m {kgf/25mm} {22} {20} Impact adhesion strength kj/m 2 {kg.cm/cm 2 } {20} {50} Curing condition 120 C x 1h. 3/6

4 Difference in Material of Adherents Shear strength MPa {kgf/cm 2 } (primer applied to one side, 25 C x 72h) Adherent Shear Strength Adherent Shear Strength Steel 20.6 {210} FRP(polyester) 7.4 {75} Oiled Steel 14.7 {150} Phenol 4.9 {50} Aluminium 9.8 {100} Polyacetal 2.2 {22} SUS 10.8 {110} ABS 0.8 {8} Copper 10.2 {104} Acrylic 2.0 {20} Nickel 10.2 {104} 6-nylon 0.8 {8} Zinc chromate 9.8 {100} PBT 0.8 {8} Green chromate 5.5 {56} 2.0 {20} Black chromate 5.9 {60} PPS 1.6 {16} Thermal resistance temperature for 72h. The test-piece was then placed at the various temperatures for 1h before checking the shear strength at that temperature. Temperature ( C) Retention of strength (%) Thermal Ageing Test temperature for 72h. The test-piece was then placed at the various temperatures for the respective timing before checking the shear strength at room temperature. Retention of strength )%) Time (h) Temperature ( C) /6

5 Moisture Resistance temperature for 72h. The test-piece was then placed at 60 C, 70 C x 95% RH for the respective timing before checking the shear strength at room temperature. Retention of Strength (%) Time (h) Condition 60 C x 95% RH C x 95% RH Thermal Impact Test temperature for 72h. The test-piece was then placed at -40 C x 2h ~ 100 C x 2h heat cycle before checking the shear strength at room temperature. Heat cycle (no of repetition) Initial 50 Retention of strength (%) Handling Precautions The curing speed varies depending on the type and distance of light source. Harmful. Do not inhale or ingest. In the event that this product is ingested, consult a physician immediately. If using a large amount of this product or using for a long time, it is compulsory to ventilate the area well. If necessary, use mask, non-permeable gloves, and protective glasses. Ventilate well with local exhaust equipment. Areas where ultraviolet light cannot penetrate can be cured using primer Three Bond In the event of using the primer, the curing rate depends on the size of clearance. Practical strength can be achieved in 3 to 4 hours, while final strength can be obtained in 24h. In case of eye contact, do not blink or rub eyes. Wash under running water for about 15 minutes. Consult a physician immediately. In case of abnormal reaction, stop using, consult a physician. Do not use on human body. Persons with allergies or who are sensitive should not use this product. In case of contact with skin, wipe with a dry cloth and wash affected area with soap and warm water. Primer Three Bond 3097 is solvent based. Hence, it is important to ventilate the area well. Please read direction and brochure carefully before use. The product colour may change upon storing or upon curing. The product may react and solidify in the presence of metal, hence, do not use metal containers or nozzle. 5/6

6 If the product is transferred to another container and is not completely used, do not return unused portion into original container. Depending on the material of the mating surfaces, the surface may deteriorate. Hence, confirm the effect of the product before use. Keep away from children. Avoid direct sunlight; store at low temperature (10 ~ 25 C). Close lid tightly after use, then store. Do not incinerate, emits poisonous gas. Disposal should be handled by hazardous waste disposal professionals. This product is flammable. Please take the necessary precautions in storage and handling (refer to MSDS). Clean the bonding area before use. For industrial use only. Packaging Three Bond 3055, 3055B Three Bond g plastic bottle with applicator 1 kg plastic bottle 500 cc glass bottle Shelf Life 12 months unopened and stored at 10 ~ 25 C. Disclaimer (Do not use for household purposes) For Industrial Use Only The data contained in this report are obtained from experimental results, based on our test methods. We cannot assume absolute responsibility for accuracy and safety. Before using this product, use your own judgement to determine whether or not this product meets the requirements of the application and objectives. This includes the burden of responsibility and hazardous danger. The extent of the guarantee provides replacement for products, which are clearly unsatisfactory. We assume responsibility for neither injury nor property damages resulting from the misuse of this product. We do not assume responsibility without written notice or contract. 6/6