METLBOND 1113 FILM ADHESIVE

Transcription

1 DESCRIPTION Metlbond 1113 is a supported modified epoxy film adhesive. Metlbond is the identical unsupported film adhesive. Both have a cure temperature range of 200 F to 290 F (93 C to 143 C) and a service temperature range of 67 F to 180 F (55 C to 82 C). FEATURES & BENEFITS Maximum continuous service temperature up to High strength and high stress elongation High peel strength 45 days outtime at Cures at a variety of pressures, temperatures and heat rise rates Withstands repeated bond cycles and reetch cycles Bonds many different metal substrates Bondline corrosion resistant High environmental resistance SUGGESTED APPLICATIONS Fabrication and repair of helicopter blades Fabrication of structural components for military and commercial aircraft CHARACTERISTICS Table 1 Adhesive Properties Nominal Weight, psf (gsm) 0.03 (146) 0.06 (293) 0.08 (391) Supporting Carrier knit or mat [1] knit or mat [1] knit or mat [1] Color Yellow Yellow Yellow Volatiles, % wt <1 <1 <1 Roll Length, yds (m) 50 (45.7) 50 (45.7) 50 (45.7) Roll Width*, in (cm) 48 (122) 48 (122) 48 (122) Wound on 3 in (7.6 cm) diameter cardboard core with the adhesive interleaved between release paper and polyfilm [2], sealed in poly bags. * Or slit to your requirement [1] Metlbond is unsupported [2] Polyfilm separator is color coded by adhesive weight AEAD 00005

2 Storage Metlbond 1113 film adhesive may be stored in excess of 12 months at 0 F (18 C) or 6 months at 40 F (4 C). To prevent moisture pickup, sealed package should not be opened until the adhesive reaches ambient temperature. PROPERTIES Table 2 Mechanical Properties: MetaltoMetal, Standard Cure per MMMA132 Property PreTest Conditioning Test Temperature Value None 67 F (55 C) 5530 (38) 6270 (43) 4970 (34) 30 days 120 F (49 C), 95% RH 6050 (42) Tensile Shear, psi (MPa) 30 days soak in tap water 5940 (41) 7 days soak in JP (43) 7 days soak in antiice fluid 6460 (44) 7 days soak in Hydrafluid 6480 (45) 7 days soak in TTS735 test fluid 6240 (43) 70 (12) Bell Peel, lb/in (Nm/m) None 80 (14) 70 (12) Climbing Drum Peel, inlb/in (Nm/m) None 70 (311) 77 (342) 75 (333) TPeel, lb/in (kn/m) None 45 (8) Blister Shear, psi (MPa) None 5040 (35) Tensile Creep, in (mm) None 0.00 (0.00) (0.038) Fatigue Cycles None 1270 x 10 6 * * Metal Failure Metal: 2024T3 Aluminum with BR 6726 primer 2 AEAD 00005

3 Table 3 Mechanical Properties: MetaltoMetal, Low Temperature Cure per DMS 1911 Property Blister Shear, psi (MPa) Bell Peel, lb/in (kn/m) Sandwich Peel, inlb/in (Nm/m) Test Temperature Value 6970 (48) 4610 (32) 3510 (24) 52 (9) 65 (11) 65 (11) 18 (80) 24 (107) 22 (98) 7075T6 Aluminum with BR 6740 primer Table 4 Mechanical Properties: MetaltoMetal, Standard Cure per DMS 1911 Property Test Temperature 500 hours at 160 F (71 C) Environmental Conditioning* 192 hours at Soaked 30 days at 120 F (49 C) in Aerosafe 2300 W. Tensile Strength, psi (MPa) 160 F (71 C) 6120 (42) 6230 (43) 4820 (33) 5420 (37) 5890 (41) 4490 (31) 6300 (43) 5740 (40) 4350 (30) * Individual cut specimens 2024T3 Aluminum with BR 6740 primer 3 AEAD 00005

4 Table 5 Mechanical Properties: MetaltoMetal, Various Substrates, Standard Cure Material/Conditioning Primer Test Temperature, F ( C) Blister Shear, psi (MPa) 2024T3 Bare Aluminum Vapor Blasted 6726 Sand Blasted 6726 Double Etched (46) 4730 (33) 3380 (23) 6760 (47) 4720 (32) 3140 (22) 5140 (35) 5000 (34) 3780 (26) CP70 Titanium in (0.406 mm) Phosphate Fluoride Conversion 301 Stainless Steel Brass 1/2 Hard Sand Blasted Vapor Blasted 2271A* (44) 5170 (36) 2920 (20) 6160 (42) 4970 (34) 3090 (21) 5000 (34) 4670 (32) 3000 (21) * Metlbond 2271A is a 250 F (121 C) curing primer specifically developed for use on titanium and stainless steel Specimen and test conforming to MMMA132 4 AEAD 00005

5 Table 6 Mechanical Properties: Sandwich Properties, Standard Cure per DMS 1911 Property PreTest Conditioning Test Temperature Value Sandwich Peel, inlb/in (Nm/m) 1 None 27 (120) None 33 (147) None 29 (129) 15 days soak 100 F (38 C) 100% RH 33 (147) 30 day soak at RT in Skydrol LD* 29 (129) 30 day in salt spray fog at 100 F (38 C)* 31 (138) TPeel, lb/in (kn/m) in ( mm) None 26 (4) None 41 (7) None 38 (7) *Openfaced sandwich: (1) bond first face, (2) expose specimen, (3) bond second face, (4) test 1 Metal: 7075T6 Aluminum with BR 6740 primer 2 Metal: 2024T3 Aluminum, no primer Table 7 Mechanical Properties: Sandwich Properties, Standard Cure per MILA25463 Property Test Temperature Value Flatwise Tension, psi (MPa) Beam Flexure, lbs (kg) Sandwich Peel, inlb/in (Nm/m) Sandwich Creep displacement, in (mm)* * 8000 lb (3629 kg) load for 192 hours Adhesive Weight: psf (293 gsm) Metal: 2024T3 Aluminum with BR 6726 primer 1580 (11) 1530 (10) 770 (5) 3020 (1370) 2910 (1320) 2300 (1043) 18 (80) 26 (115) 23 (102) (0.000) (0.152) 5 AEAD 00005

6 Table 8 Thick Adherent Shear per Bell BHT Property Test Temperature Value Failure Stress, psi (MPa) Elongation, in (mm) Yield Stress, psi (MPa) Typical Bondline Thickness, in (mm) Metal: 2024T3 Aluminum with BR 6726 primer (70) 7020 (48) 5680 (39) (0.1448) (0.2794) (0.2794) 8730 (60) 5070 (35) 2620 (19) (0.152) (0.178) (0.152) Table 9 Mechanical Properties: Effect of Out Time Property Test Temperature Adhesive Weight, psf (gsm) 0.03 (146) 0.06 (293) 0.08 (390) Flow, % 250 [1] 325 [2] 550 [2] Blister Shear, psi (MPa) 3700 (25) 4900 (34) 3000 (21) Bell Peel, lb/in (kn/m) 50 (9) 60 (10) 58 (10) 68 (12) 60 (10) 70 (12) Sandwich Peel, inlb/in (Nm/m) 4.9 (21.8)* 30 (133) 40 (178) 37 (165) 37 (165) 40 (178) 45 (200) [1] Details out 11 days at room temperature [2] Details out 15 days at room temperature * Core failure: in (0.508 mm) 2024T3 aluminum skins, Nomex core HRH 101.5, 1/4 in (6.35 mm) cell, 3/4 in (19 mm) thick 6 AEAD 00005

7 Flow % Days Exposure at Room Temperature Figure 1 Out Time Data: Percent Area Flow per Bell (133) Sandwich Peel, inlb/in (Nm/m) 28 (125) 26 (116) 24 (107) 22 (98) 20 (89) 70 (57) 50 (47) 30 (34) 10 (23) 0 (18) 10 (12) 30 (1) 50 (10) 70 (21) Test Temperature, F ( C) Figure 2 Out Time Data: Sandwich Peel Film Weight: psf (293 gsm) 7 AEAD 00005

8 APPLICATION PROCEDURES Cure Cycle Metlbond 1113 can reach its properties using a variety of cure cycles. Table 10 includes three suggested autoclave cure cycles. For recommendations on other cure cycles and processes contact your Cytec Engineered Materials Technical Service representative. Table 10 Metlbond 1113 Autoclave Cure Cycles Cure Parameter Pressure, vented psi (kpa) Heat Up, 1 7 F/min (0.5 4 C/min) Cure Cycle Low Temperature Standard Fast 40 (276) 40 (276) 40 (276) RT to 200 F (93 C) RT to 260 F (127 C) RT to 290 F (143 C) Dwell Time, min Cool Down, under pressure, F ( C) < 140 (60) <140 (60) <140 (60) Surface Preparation NonMetallic Cured Substrates with Peel Ply Most high performance composites employ a removable peel ply of nylon or Dacron fabric. After this ply is removed (just before layup), the following surface preparation is recommended: 1. Lightly sand the surface to be bonded using grit sandpaper This removes fractured resin nodules. 2. Wipe the surface with a clean, lintfree cloth to remove dust 3. Wipe the surface with a clean, lintfree cloth dampened with MEK or acetone. NonMetallic Cured Substrates without Peel Ply If a cured composite does not have a removable peel ply the surface to be bonded must be sanded several times to break the resin glaze. The following surface preparation is recommended: 1. Lightly sand the surface to be bonded using grit sandpaper 2. Wipe the surface with a clean, lintfree cloth to remove dust 3. Wipe the surface with a clean, lintfree cloth dampened with MEK or acetone 4. Repeat steps 1 3 three or four times 5. Thoroughly air dry substrate at room temperature. 8 AEAD 00005

9 Aluminum Skins 1. Clean surface to be bonded with a clean, lintfree cloth dampened with MEK or acetone All ink markings must be removed from wrought aluminum and aluminum alloy substrates. 2. Rack parts so as to ensure intimate contact with processing solutions on all surfaces 3. Vapor degrease in trichloroethane by suspending parts in the vapor zone until vapors no longer condense on the surface Exceptionally dirty parts may be flushed with clean, hot trichloroethane liquid and cooled prior to vapor degreasing. NOTE: From this point on, materials must be handled with tongs or gloves. 4. Immediately after degreasing, submerge the part in a tank containing the following solution: Hot (150 ± 5 F [66 ± 3 C]) deionized water 6 oz/gallon (0.06 g/liter) Turco AlumiClean soap Dried, filtered air agitation for a period of 7 minutes minimum 5. Immediately transfer the part to a rinse tank of tap water at 150±5 F (66±3 C) and agitate for a minimum of 2 minutes 6. Immediately spray rinse all surfaces with deionized water at ambient temperature for a minimum of 2 minutes. 7. Immerse parts for 12 +2/0 minutes at F (66 71 C) in a solution of the following composition: Distilled or deionized water Sulfuric acid (specific gravity 1.84) Sodium dichromate 30 parts by weight 10 parts by weight 4 parts by weight 8. Rinse thoroughly by either one or a combination of the following methods: Overflow Rinse Either one or two tanks may be used for immersion rinsing provided the ph of the final rinse is maintained between 5 and 8.5. Spray Rinse Spray with water maintained at a ph of 5 to 8.5. All surfaces must be thoroughly flooded with rinse water. 9. Air dry parts by placing in a rack so as to prevent retention of water. Thorough draining is required to prevent water stains which might weaken subsequent bond. Drying may be facilitated by drying in an air circulating oven at 150 F (66 C). Compressed air and/or cloths should not be used to dry cleaned surfaces. Aluminum Core No cleaning is necessary unless the core has been contaminated by foreign matter in which case degrease with MEK or vapor degreaser. 9 AEAD 00005

10 Other Substrates Information concerning the surface treatment of substrates other than aluminum is given in MILA9067. Primer The use of a primer is not a prerequisite for obtaining a structural bond. However, assemblies are commonly primed to improve production flow. Apply primer by spray or brush method not to exceed inch ( mm) dry film thickness. Heavier primer coats should be avoided. A dry film thickness of inch (0.004 mm) is recommended. NOTE: Primer must be allowed to reach room temperature before use and must be agitated immediately prior to and during use. Description The data presented includes two different primer systems BR 6726 is a one hour air dry at room temperature only, corrosion inhibiting adhesive primer to be used primarily with unclad aluminum alloys BR 6740 is a corrosion inhibiting adhesive primer designed to be air dried at room temperature for a minimum of one hour. Then for maximum protection of clad and unclad aluminum alloys, place the primed details in an air circulating oven and force dry for 30 minutes at 245 F (113 C) Physical properties of BR 6726 and BR 6740 primers are given in Table 11. Table 11 Physical properties of BR 6726 and BR 6740 Primers Property BR 6726 BR 6740 Color Yellow Yellow Solids, % 10 ± 1 10 ± 1 Viscosity, cp Flash Point, F ( C) 22 (5.5) 31 (0.5) Shelf Life at 40 F (4 C) 6 months 6 months Shelf Life at Room Temperature 30 days 30 days Solvent Primarily MEK Primarily MEK Storage of Primed Surfaces Primed details may be stored for extended periods but must be protected from contamination by wrapping in nonwaxed Kraft paper. Prefitting of Details Faying surfaces shall have good contact over the entire surface area to be bonded and shall be free of burrs, waves and other imperfections. Where feasible, details should be prefitted prior to assembly bonding. 10 AEAD 00005

11 Layup Procedure 1. Remove Metlbond 1113 from refrigerator storage and allow the adhesive to warm to room temperature before unpackaging the roll 2. Remove one of the interliners and place the exposed adhesive against the surface to be bonded. Care should be taken to prevent air entrapment between the film adhesive and substrates especially in large area bonds. 3. If additional tack is desired, the adhesive may be heated to as high as 120 F (49 C) without altering the adhesive properties Before heat tacking ensure the film is properly positioned, removal will be difficult. 4. Remove the other interliner and complete the assembly PRODUCT HANDLING AND SAFETY Cytec Engineered Materials recommends wearing clean, impervious gloves when working with adhesives to reduce skin contact and to avoid contamination of the product. Materials Safety Data Sheets (MSDS) and product labels are available upon request and can be obtained from any Cytec Engineered Materials Office. DISPOSAL OF SCRAP MATERIAL Disposal of scrap material should be in accordance with local, state, and federal regulations. CONTACT INFORMATION GLOBAL HEADQUARTERS Tempe, Arizona tel fax NORTH AMERICA Olean, New York tel fax Winona, Minnesota tel fax Greenville, Texas tel fax EUROPE AND ASIA Wrexham, United Kingdom tel fax Springfield, Massachusetts tel fax Anaheim, California tel fax Cytec Carbon Fibers LLC Piedmont, South Carolina tel fax Östringen, Germany tel fax Havre de Grace, Maryland tel fax Orange, California tel fax D Aircraft Products, Inc. Anaheim, California tel fax Shanghai, China tel fax DISCLAIMER: The data and information provided in this document have been obtained from carefully controlled samples and are considered to be representative of the product described. Cytec Engineered Materials (CEM) does not express or imply any guarantee or warranty of any kind including, but not limited to, the accuracy, the completeness or the relevance of the data and information set out herein. Because the properties of this product can be significantly affected by the fabrication and testing techniques employed, and since CEM does not control the conditions under which its products are tested and used, CEM cannot guarantee that the properties provided will be obtained with other processes and equipment. No guarantee or warranty is provided that the product is adapted for a specific use or purpose and CEM declines any liability with respect to the use made by any third party of the data and information contained herein. CEM has the right to change any data or information when deemed appropriate. All trademarks are the property of their respective owners. 11 AEAD 00005