GENERAL48636 - Laserfiche WebLink

Home Browse Search

Sur/ace Preparation Proper surface preparation is critical to the long-tens performance of this product. The exact requirements for surface preparation vary with the seventy of the application, expected service life, and the initial substrate conditions. All sharp edges and welds shall be ground smooth or to a 3 mm (0.125") radius before abrasive blasting Optimum preparation will provide a surface cleaned of all contaminants and roughened to an angular profile between 75-125 microns (3 to 5 mils). This is normally achieved by initial cleaning and degreasing and then abrasive blasting to a cleanliness of White Metal (Sa 3/SSPC-SP5) for immersion service and thermal cycling applications, and Near White Metal (Sa 2 112/SSPC-SP70) for atmospheric exposure. Prior to application, all residual blast residue shall be removed from the surface to be coated. Mixing To facilitate mxing and application, material temperatures should be between 21 °C - 32°C (70°F - 90°F) Each kit is packaged to the proper mix rauo. If further proportioning is required, the kit should be divided to the correct mix ratio. Mix Ratio By Weight Volume A:B 2.6.1 2.0.1 Prior to mixing ARC S1, pre-mix Part B to suspend any settled reinforcements. Vvhen applying by hand, add Part B to Pan A. Mix by hand for 1 minute. Shift a small portion of [his mix back to the Part B wnlainer and scrape the walls of this container to remove all traces of residue. Add this portion back to the Part A container. Continue to mix product until product is uniform in color and consistency, no streaks. Power mixing should be accomplished with a variable speed, high torque, low speed mixer with anon-air entraining mix blade such as a "JiRy" blade. Do not mix more product than can be applied within the stated working time. Working Time -Minutes 70'C 76°C 25°C 32°C 50°F 60'F 77°F 90°F 0 75 liter 90 75 60 45 4 liter 75 60 45 30 161iter 50 40 25 20 Tha than above rlelines the praGiwl woMinp bme of ARC 51, atartmg from when mung bsg~na. Application ARC S1 may be applietl by spray system, brush, or roller using a lint free nap roller such as mohair. When applying ARC S1 the following conditions should be observed: Film thickness range per coal 200 p (8 mils) - 375 p (15 mils) Application temperature range 10°C (50'F) - 35'C (100°F) (substrate) ARC S1 may be spray applied by plural component airless spray equipment without solvent dilution. Recommended equipment and procedures are below: Plural Component • Fixed ratio: 2 : 1 • Air Motor: Graco Bulldog 30-1 or equal • Part A Fluid Line: 12 mm (1/2") • Part B Fluid Line: 9,5 mm (316") • In-line 220 volt heaters ° Reservoir heaters and insulated hoses ablE~ to maintain materials at 50°C (120°F) • Gun' Greco Model 220-956, Series A • Tip: 513 -523 • Pressure: 204 - 225 bar (2,900 -3,200 psi) Apply initial pass at 75 -125 microns (3-5 mils). Build successive passes to achieve foal first coat desired thickness. Vertical or overhead applications will result in reduced film thickness. To compensate additional coats are recommended. Use the chart below to determine the desirelJ foal flm thickness recommended for the application. Service Minimum # Film Thickness Total Film Thickness of Coats per Coat Thickness Conditions Atmospheric 1 200 - 300 p 200 - 300 p (Structural Steel) (8 - 12 mils) (6 - 12 mils) Static Immersion 2 250 - 400 p 500 - 750 p (Tanks) (10 - 15 mils' (20 - 30 milsl Fluid Flaw 2 250 - 400 p 500 - 750 p (floes) (10 - 15 mils' (20 - 30 mIIS1 Multiple coat applications of ARC S1 may bE~ accomplished, without additional surface preparation, as long as the film is free of contamination and has not cured beyond the stage stated as Overcoat End in the Curing Schedule chaR below. If this period is exceeded, light abrasive blasting or sanding is required to be followed by a solvent wash to remove any at rasive residues. Curing Schedule 10°C 16°C 26'C 32°C 60'F 60'F 77'F 90°F Tack Free 8 hrs 7 hrs 6 hrs 4 hrs. Lioht Load 36 hrs 24 hrs 18 hrs 12 hrs. Overcoat End 44 hrs 36 hrs 30 hrs 24 hrs. Full Load 72 hrs 48 hrs 36 hrs 24 hrs. Full Chemical 240 hrs 210 hrs 168 hrs 120 hrs.. Force rLrng at 65'C (150-F I after material has reaUetl lack Free will accelerate mre tune l0 4 hours plus Tack Free ume Clean Up ARC 51 cures to a soled mass in a very short period of time All clean up activities must be corned out as soon as possible to prevent material hardening onto the tools Use comnercial solvents (Acetone, %ylene, Alcohol, Methyl Ethyl Ketone) to clean tools immedialey after use. Once cured the mater al would have to be abraded oR. Storage Store between 10°C (50'F) and 32°C (90'F) Excursions beyond this range which may occur during shipping :are acceptable. The shelf life is two years in unopened container:.. Settling and reinforcement separation may occur over lime or at elevated storage temperatures. Reconstitute prior to use by mixing individual wmponenls before mixing Part A with Part Et. Safety Before using any product, review the appropiiale Matedal Safety Data Sheet (MSDS) or Safety Sheet for your area. Follow standard confined space and entry work procedures, i ~ appropriate. TeU~niral Dala reAecls results of laboratory tests antl n inlentled to ,nCicate general charanenst¢s only A.W. CHESTERTON CO DISCLAIMS ALL NW.RRANmES E%PRESSED. OR IMPLIED, INCLUDING WARRANTIES OF MERCHPNTABILITY AND FITNESS FOR A PARTICULAR PURPOSE OR USE .LIABILITY. IF ANY, IS LIMITED TO PRODUCT REPLACEMENT I Mi00Lf5E% iN0U9igIAL PAgI(. 135 FALCON gOAO 5]ONENeM. MAa9ACNU9Eri901ID0.9rOr U9A TEL i)a 11 a]a ]000-FA% paq a]a~a9i1 CABLE CHES]ERi0N 5i0NEXAM, MA55 WEB AOOREaa ono P.v rneNenon c°m OAW CHESTER10N C0.. 1000 All~gnb ,eserv°a i gep51e~e0 OaEema~Y OwneE an0 4[ensea Ey • W CMESifPiON CO m USA an0 amn [aunlnes qEV 0000