rtv160 rtv160, rtv162 and RTV167 electronic grade silicone adhesive sealants product description rtv160, rtv162 and RTV167 adhesive sealants from mo mentive performance materials are one-component, ready-to-u se electronic grade silicone sealants. they cure to a tough, resilient silicone rubber on exposure to atmospheric moisture at room temperature. these electronic-grade silicone adhesive sealants differ somewhat in physi cal properties including consistency. rtv160 - white flowable paste rtv162 - white paste RTV167 - gray, high strength paste key performance properties non-corrosive to electronic metals, including coppe r and brass low odor cure, releasing an alcohol vapor from the sealant surface during cure ul recognition. rtv160, rtv162 and 167 are recognized by underwriters laboratories, inc. under their compone nt recognition program (ul file no. e-36952). refer to momentive p erformance materials publication (4320) for additional information. retains elastomeric properties for long periods at temperatures from - 60c (-75f) to 205c (400f) and for short periods up to 260c (500f). one component cure at room temperature excellent electrical insulation properties excellent resistance to moisture, dust, dirt, uv, o zone and chemicals typical product data typical uncured properties rtv160 rtv162 RTV167 color white white gray consistency flowable liquid spreadable paste spreadable paste viscosity, poise 380 ? ? specific gravity 1.04 1.09 1.12 application rate, gm/min. ? 350 180 tack-free time, hours 4 4 4 cured properties (1) mechanical hardness, shore a 25 35 37 tensile strength, kg/cm 2 (lb/in 2 ) 19 (275) 38.2 (550) 56 (800) elongation, % 230 400 600 peel strength, kg/cm (lb/in)( 2 ) 2 (10) 7.2 (40) 10 (80) free datasheet http:///
(1) cure time 7 days at 25c (77f), 50% relative hum idity. (2) 1 in. x 8 in. stainless steel screen at 180 pu ll angle. (3) information is provided for customer convenienc e only. properties are not tested on a routine basis. electrical (3) dielectric strength, kv/mm (v/mil) 20 (500) 18 (450) 20 (500) dielectric constant @ 60 hz 2.8 2.8 2.8 dissipation factor @ 60 hz .001 .001 .0026 volume resistivity, ohm-cm 4x1014 3x1015 3x1015 thermal (3) brittle point, c (f) -60 (-75) -60 (-75) -60 (-75) maximum continuous operating temperature, c (f) 204 (400) 204 (400) 204 (400) maximum intermittent operating temperature, c (f) 260 (500) 260 (500) 260 (500) additional information (3) thermalconductivity, cal/sec/cm 2 , c/cm .0005 .0005 .0005 (btu/hr/ft2, f/f) (.12) (.12) (.12) coefficient of expansion 27x10 -5 27x10 -5 27x10 -5 cm/cm, c (in/in, f) (15x10 -5 ) (15x10 -5 ) (15x10 -5 ) specifications typical product data values should not be used as s pecifications. assistance and specifications are available by cont acting momentive performance materials at 800/255-8886 military specifications rtv162 and RTV167 sealants meet the physical requir ements of mil-a- 46146. testing is performed in accordance with curr ent momentive performance materials quality test methods, laborat ory conditions, and procedures, frequency and sampling, which are not n ecessarily identical with the methods, conditions, procedures, frequency and sampling stated or referenced in mil-a-46146. any certification will b e limited to listed properties and will not imply or state conformity t o any other aspect of mil- a-46146, including but not limited to marking, pack aging, bar coding, testing, or sampling. contact momentive performance materials for a comparison review. instructions for use applications rtv160, rtv162 and RTV167 are recommended for use i n aerospace, automotive, appliance and other industries which in corporate electronic components into a finished product. electronic and integrated circuits, semiconductors and copper connections are typical a pplications. rtv160 adhesive sealant is recommended for insulati ng, encapsulating and coating in thin sections [less than 6mm (1/4')] , where flow into small crevices or hard-to-reach places is desired. rtv162 adhesive sealant is recommended for sealing and bonding of electronic components onto printed circuit boards a nd protecting copper connections on electronic parts assemblies. RTV167 adhesive sealant is recommended for sealing and bonding where high strength would be required. free datasheet http:///
surface preparation rtv160, rtv162 and RTV167 adhesive sealants will bo nd to many clean surfaces without the aid of primers. these surfaces normally include many metals, glass, ceramic, silicone rubber and some ri gid plastics. these adhesive sealants will also bond to some organic ru bbers and flexible plastics not containing fugitive plasticizers (thos e that migrate to the surface impairing adhesion). an evaluation should be made t o determine bond strength for each specific application. for difficult-to-bond substrates, use of a primer i s suggested. ss4004, ss4044 and ss4179 primers are recommended for use w ith rtv160, rtv162 and RTV167 sealants. complete information an d usage instructions for these primer products are containe d in a separate product data sheet, (cds#1532). where adhesion is required, surfaces should be thor oughly cleaned with a suitable solvent to remove dirt, oil and grease. th e surface should be dry before applying the adhesive sealant. when solvents are used, proper safety precautions m ust be observed. cure time cycle rtv160, rtv162 and RTV167 adhesive sealants may be applied directly to a clean or primed substrate. the adhesive sealan t begins to cure on exposure to moisture in the air at room temperature . where broad surfaces are to be bonded the sealant should be applied in a thin, less than 6mm ( ? in.) diameter bead or ribbon around the edge of one of the surfaces. the cure process begins with the formation of a ski n on the exposed surface of the sealant and progresses inward throug h the material. at 25c (77f) and 50% relative humidity, these products wil l form a surface skin which is tack-free to the touch in about 4 hours. o nce the tack-free skin has begun to form, further tooling of the adhesive seal ant is not advisable. high temperatures and high humidity will accelerate the cure process low temperatures and low humidity will slow the cure ra te. as the adhesive sealant cures, alcohol vapors are r eleased from the sealant surface. this by-product of cure has a slight, but non-objectionable odor which will completely disappear after curing is com pleted. a 3mm (1/8 in.) section of adhesive sealant will cu re through in approximately 48 hours at 25c (77f) and 50% relativ e humidity. since cure time increases with thickness, use of rtv160, rtv16 2 and RTV167 sealants should be limited to section thicknesses o f 6mm ( ? in.) or less. packaging and dispensing rtv160, rtv162, RTV167 adhesive sealants are suppli ed in caulking cartridges and bulk containers. rtv162 and RTV167 a re also available in collapsible squeeze tubes. tubes may be squeezed by hand or with the aid of me chanical wringers which allow more complete removal of material from the tube. the sealant may be dispensed from caulking cartridges by using simple mechanical caulking guns or air-operated guns. air-operated gu ns will allow greater control and application speed. both tubes and cartr idges are easy to use, can be put into production quickly and require mini mum capital investment. free datasheet http:///
note: do not exceed 45 psig when used in air-powered cau lking guns.bulk containers offer the most economical packaging for volume production. bulk dispensing systems are air-operated extrusion pumps coupled to hand or automated dispensing units. specific details on dispensing systems and manufacturers are available in a separate momentive performance materials rtv silicone sealant equipment guide, (cd s1541). recommendations for pump selection and assistance i n converting lines from other silicone systems to the rtv160, rtv162 a nd RTV167 alkoxy cure system sealants are available from momentive p erformance materials. clean up and removal before cure, solvent systems such as naphtha or met hyl ethyl ketone (mek) are effective. handling and safety material safety data sheets are available upon requ est from momentive performance materials. similar information for solv ents and other chemicals used with our products should be obtained from your suppliers. storage and warranty period the warranty period is 6 months from date of shipme nt from momentive performance materials if stored in the original uno pened container at or below 50f. availability products may be ordered from momentive performance materials, waterford, ny 12188, the momentive performance mate rials sales office nearest you, or where appropriate an authorized mom entive performance materials silicone product distributor. government requirement prior to considering use of a momentive performance materials product in fulfilling any government requirement, please conta ct the government and trade compliance office at 413-448-4624. cds4500 legal disclaimer the materials, products and services of momentive p erformance materials, their subsidiaries or affiliates (the ?supplier?), are sold subject to the supplier?s standard conditions of sale, which are i ncluded in applicable sales agreements, printed on the back of acknowledg ments and invoices, or available upon request. although the information , recommendations or advice contained herein is given in good faith, sup plier makes no warranty or guarantee, express or implied, (i) that the resu lts described herein will be obtained under end-use conditions, or (ii) as to the effectiveness or safety of any design incorporating supplier?s mater ials, products, services, recommendations or advice. nothing in thi s or any other document shall alter, vary, supersede or operate as a waiver of any of the supplier?s standard conditions of sale. each user bears the full responsibility for making its own determination as to the suitability of supplier?s materials, products, services, recommend ations or advice for its own particular purpose. each user must identify and perform tests and analy ses sufficient to assure it that its finished parts will be safe and suitable for use under end-use con ditions. because actual use of products by the user is beyond the control of supplier, such use is within the exclusive responsibility of the user, a nd supplier cannot be held responsible for any loss in curred through incorrect or faulty use of the products. further, no statement contained herein co ncerning a possible or suggested use of any material, product, service or design is intended or should be construed to grant any license under any patent or other intellectual property right of supplier or any of its subsidiaries or affiliated companies, or as a recommendation for the use of su ch material, product, service or design in the infringement of any patent or other intellectual pr operty right. free datasheet http:///
|
