Wear-Flex XPress Spray Application and Instruction Guide

Transcription

1 Application and Instruction Guide

2 Warning: Proper Personal Protection Equipment should be used While Applying Elastomeric Compound Eye, breathing and hand protection are recommended during setup and the spray application process. Be sure to check with your company safety director or office for your company s requirements. Product Description: is a two component, 100% solids, wear resistant, polyurethane/polyurea elastomeric coating. It is designed to seal and protect a variety of surfaces including metal, concrete, wood, plaster, composite materials, rubber, some plastics and fiberglass. It is excellent for resisting wear caused by low stress abrasion. It also seals against moisture and corrosive attack. Uses: is an anti-wear, anti-corrosion coating designed to resist sliding wear and corrosion. It may be used for lining of material handling equipment, water proofing of structures and equipment, protection of concrete from acids or alkaline materials, undercoating of vehicles for corrosion protection and sound deadening. Some applications include: Coal chutes Sand and gravel chutes & bins Grain handling equipment Concrete plant chutes Deflector plates Separator screens Sealing cooling tower pans Sealing containment walls Sealing concrete holding tanks Coating wash bays Creating moisture barriers Protecting storage silos Marine decks and work areas Docks Boat cargo holds Ballast tanks Pond liners Waste water treatment tanks Pneumatic fly ash conveying Dust handling equipment Street sweeper chutes & bins Salt/sand trucks Commercial laundry diaphragms High fructose corn syrup corrosion Garbage trucks Recycling machines In-ground pipelines Quarry truck gas/hydraulic tanks Paper recycling wash area Metal buildings/garages/sheds Sand blasting booths Packaging machinery Train/locomotive battery boxes Evaporative cooler boxes Chemical splash/spill corrosion Screw conveyors

3 Storage: WARNING! is sensitive to moisture. Store in a dry place between ºF. Shelf life is six months in original unopened container. All containers must be sealed when not in use. Surface preparation: Proper adherence of Wear-Flex XPress depends on proper bond to the substrate. Make sure the surface is clean and free of grease, oil, dirt, rust or corrosion, loose debris and loose paint. Degrease the surface with Metal Groom or non-residue degreaser to remove any trace of oil. Slick or polished surfaces should be scuffed to remove the shine and provide a tooth for the best bond. Use Wear-Flex XPress Bonding Agent on all surfaces except hard rubber. Hard rubber only requires abrading to remove oxidized surface. Apply a thin coat of bonding agent (only enough to dampen the surface) and allow it to dry completely. Gun: Air tube connection to aspirator tip Piston direction slide button Piston speed adjustment knob Aspirator air flow adjustment knob Male plug to connect air supply 2 Trigger

4 Setup: 1. After surface preparation is done per instructions mask off all areas adjacent to repair to prevent any unnecessary over spray. Use cut tape for a clean straight line. To ensure coverage to 1/16 thickness, mark off 20 sq. ft. sections on maskings and use a single tube to cover each section. 2. Ensure Bonding Agent has been applied to all materials to be sprayed, except hard rubber, in a thin, even layer and allowed to dry completely. 3. Obtain and use any safety equipment and clothing required by your safety department and program to comply with the spray and application of polyurethane coatings. At a minimum, you will need eye, breathing and hand protection. 4. should be applied using a Wear-Flex XPress pneumatic dual cartridge spray gun (see page 2) 5. Remove the end plug and apply a static mixing tube with air atomizer to each cartridge ensuring the mixer tip is fully seated on to the cartridge nozzle and the air atomizer is adjusted to be flush with the tip. Proper aspirator tip alignment 6. Attach mixing tips to enough cartridges to do the entire job before beginning to spray. Each cartridge covers approx 22 sq. 1/16 thickness. NOTE: CARTRIDGES MUST BE KEPT IN AN UPRIGHT POSITION AFTER ATTACHING MIXING TIPS. DO NOT LET THE COMPOUNDS FLOW INTO THE TIP. 3

5 Wear-Flex XPress Spray 7. Ensure you have clear access to every area to be coated with Wear- Flex XPress Spray. NOTE: If you stop spraying for any TIME at all, even a few seconds, you will have to CHANGE mixing tips before you can continue. 8. Connect the air hose to the pneumatic gun. 9. Ensure that the compressed air source is dry, and can provide a constant psi at 10 cfm. Piston speed adjustment knob open to maximum 10. Make sure the gun piston speed is adjusted to maximum. 11. Check proper operation of the gun by pressing the trigger. The pistons should move together quickly forward. Switch the gun to retract by pushing the slide button. After retracting the pistons change direction to forward to prepare to spray. Piston direction side button 12. Load a cartridge into the gun, ensure the atomizer is flush to the tip and the air tube connection is pointing down and slightly to one side. NOTE: ALWAYS MAINTAIN AN ELEVATED POSITION WITH THE MIXING TIP END UP UNTIL READY TO SPRAY. 13. Attach atomizer air tube to the atomizer. 14. Open the spray control to 25 psi ( approximately 3-1/2 to 4 turns to the gold color band on the valve at 90 psi). Atomizer air flow adjustment knob 4

6 Spraying: Once spraying starts, do not stop pulling trigger. Any stop will allow product to clog mixer, and will then require a new mixer tip. Start spraying on a piece of cardboard or other disposable surface until fully mixed product is sprayed from tip. When an acceptable spray pattern has been achieved, this should take 2-3 seconds, fan over the object to be sprayed, working with even passes, building coats to desired thickness (spraying inches from the material to be covered). Visually monitor material levels in the cartridge and cease spraying just prior to emptying each cartridge to ensure that an even ratio of material is being applied to the surface. Wear- Flex XPress Spray will self-texture, but to achieve a uniform texture, respray the entire work surface on final pass with an even, thin coat. Air can be reduced to the atomizer to achieve a coarser texture on the surface if desired. To stop spraying, point the tip back at the cardboard or other disposable surface. Press the reverse button on the gun and retract the pistons to stop extruding the product. Turn off the air flow to the aspirator tip by closing the valve at the end of the aspirator tube. If product remains in the cartridge, it can be saved for future use by removing the mixer tip and replacing the plug and retaining nut. Chemical Resistance: The following chemical resistance spot testing data were obtained from a mils film of Wear-Flex XPress in each chemical listed below at F for a period of hours. Like other industrial maintenance coatings, Wear-Flex XPress has chemical and temperature limitations. Please read the disclaimer below. For chemicals other than those listed below, proper testing must be completed prior to application of the coating system. It is advisable to consult your local Partsmaster representative or tech services for more information. Table: 1: No visible damage 2: Little visible damage 3: Some effect swelling, discoloration, cracking 4: Not recommended 5: Satisfactory for splash, spillage and secondary containment (72-96 hours) Chemical Solvents: Xylene...4 Toluene...4 Acetone...3/5 2 Methyl Butane...1 MTBE...3/5 5

7 HEXANE...3/5 Motor Oil...2 Gasoline (unleaded)...1 Diesel...1 Brake Fluid...2 Hydraulic Oil...1 Methanol...4 Acids and Bases: Sewage...1 Hydrogen Sulphide gas (H 2 S gas)...1 Hydrocholric Acid 35%...4 Hydrochloric Acid 10%...1 Hydrochloric Acid 5%...1 Propylene Carbonate...3 Lactic Acid, 45%...2 Phosphoric Acid, 10%...1 Ammonium Hydroxide 10%...1 Ammonium Hydroxide 20%...1 Sodium Hydroxide 50%...2 Salt Water (30%)...1 Drinking Water...1 De-Ionized Water...1 Sulphuric Acid 60%...4 Sulphuric Acid 30%...5 Sulphuric Acid 10%...1 Sulphuric Acid 5%...1 Potassium Hydroxide 10%...1 Potassium Hydroxide 20%...2 Sodium Hydroxide 10%...1 Sodium Hydroxide 20% % Sugar/Water...1 Acetic Acid 2%...1 Acetic Acid 5%...1 Acetic Acid 10%...1 Acetic Acid 50%...4 Formic Acid 2%...1 Formic Acid 5%...1 Formic Acid 10%...2 DISCLAIMER: All recommendations, statements, and technical data contained herein are based on tests we believe to be reliable and correct, but accuracy and completeness of said tests are not guaranteed and are not to be construed as a warranty, either expressed or implied. This information relates to the specific material designated and may not be valid for such material used in combination with any other material or in any process. It is the users responsibility to satisfy himself, by his own information and test, to determine suitability of the product for his own intended use and user assumes all risk and liability resulting from his use of the product. Neither seller nor manufacturer shall be liable to the buyer or any third person for any injury, loss or damage directly or indirectly resulting from use of, or inability to use, the product. Recommendations or statements, whether in writing or oral, other than those contained herein shall not be binding upon the manufacturer, unless in writing and signed by a corporate officer of the manufacturer. Test performance results were obtained in a controlled environment and PARTSMASTER makes no claim that these tests or any other tests, accurately represent all environments. Application, environmental and design factors can vary significantly, due care should be exercised in the selection and use of the coating. PUBLISHED TECHNICAL DATA AND INSTRUCTIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE. CONTACT YOUR LOCAL PARTSMASTER REPRESENTATIVE FOR CURRENT TECHNICAL DATA AND INSTRUCTIONS. 6

8 Cold Weather Application: Cartridges should be a minimum of 77ºF before using and can be heated up to 120ºF for faster cure. Heat the surface when the temperature is below 50ºF to at least 90ºF. Do not burn the surface. It will impede the bond. DO NOT LET freeze. Troubleshooting: 1. Product won t spray 2. Mixer tip leaks at nut 3. Product builds up on tip while spraying and sprays unevenly. 4. Surface of spray is too coarse. Check to make sure gun reverse is not engaged. Check to see that the nozzle end cap was removed before mixer tip was installed. Check for cured product in mixer tip (It sets up in about 7 seconds after mixing). Check for mixed product migrating into the cartridge creating a plug. Always hold gun with tip up to prevent this occurrence. Check for proper fit of mixer and tighten nut. Check for mixed product migrating into the cartridge creating a partial plug. Always hold gun with tip up to prevent this occurrence. Check that the gun feed is set to maximum. Check air pressures and adjust. Increase air pressure to air atomizer. Check mixer/atomizer alignment, they should be flush or the mixer tip should protrude no more than 1/16 in front of the atomizer tip face. 7

9 Troubleshooting: 5. Product not curing quickly 6. A bubble formed under the coating Be sure to start and finish each cartridge on a disposable surface in case the materials don t start flowing at exactly the same time to achieve the correct mix. Check the mixer tip and cartridge for blockage. Replace the mixer if needed. Puncture it and it will likely reattach to the surface. It may be caused by moisture or vapor under the coating. 7. Product peels easily from the surface 8. Bonding Agent won t dry completely Sprayed product must not be moved or flexed before it has had a chance to cure for a full hour to build bond strength. Loose rust, paint and dust must be completely removed from the surface prior to coating or it will impede the bond. Check to be sure surface was completely free from grease or other release agents prior to spraying. Make sure a very light coat of Wear-Flex XPress Bonding Agent was applied and allowed to dry completely before spraying. Highly polished surfaces should be scuffed to provide additional tooth and bond strength. Spray will not bond to some plastics, like polyethylene and polypropylene. Humidity greatly affects the drying speed. Use as little bonding agent as possible to lightly coat the surface. Use a clean, lint-free cloth to soak up and spread the bonding agent on the surface. Use a fan or heat gun to speed the drying process, but be sure not to scorch the surface because it will impede the bond strength. 8

10 Frequently Asked Questions: 1. How long does Wear-Flex XPress take to cure when applied? It cures very quickly when sprayed. The product sets up in about 7-10 seconds and is cured in less than 1 hour at room temperature. Lower temperatures are slower but it still sets up and cures very quickly. 2. Can this product be used on a flexible surface? Yes. It is elastomeric in nature and has good flexibility. 3. Do I have to remove paint before applying Wear-Flex XPress? No, not necessarily. If the paint is in good condition, sanding and degreasing the surface will often work. Be sure to use the Wear-Flex XPress Bonding Agent and allow it to dry completely before application. 4. What do I need to use this product? A clean compressed air supply that will provide at least 90 lbs. of pressure while using 3-4 ft 3 /min; Personal Protective Equipment (PPE includes eye, breathing and hand protection) for the operator and good ventilation. Check with your safety department for your company s requirements. 5. Can this product be used as a moisture barrier? Yes, the coating is water resistant. When the surface is completely coated it will prevent moisture transfer even through porous substrates. 6. Why does a shiny or polished surface need to be scuffed up and how do you do it? Smooth or polished surfaces don t have much surface area for a mechanical bond. Scuffing them up increases the surface area and provides a tooth to help the product adhere. 7. Why do you use Wear-Flex XPress Bonding Agent on everything except black rubber? Various materials have different expansion and contraction rates and elastic properties. Bonding Agent provides a way to improve the surface adherence between the various materials. Wear-Flex XPress bonds well to black rubber like that used to make conveyor belts. If in doubt, use Bonding Agent. 9

11 Frequently Asked Questions: 8. Is it necessary to sand blast before application? Only if the surface is in poor condition or has loose material on it; i.e. loose paint, corrosion, dirt or debris, etc. Sand blasting will improve the surface adherence of Wear-Flex XPress. 9. Why do I have to degrease? Grease or oil of any kind will act as a release agent and degrade the bond to the surface. 10. How do you make the Wear-Flex XPress surface less slick? You can broadcast sand into the spray stream by hand while another person is spraying. Broadcasting after spraying will not work well as the product sets up too quickly. 11. Do I have to wear a respirator? It is recommended that you check with your company safety office for guidance regarding appropriate personal safety equipment requirements for use while spraying polyurethane coatings. 12. How thick does the sprayed coating need to be? That depends on the application. Sealing a surface may only require a thin coat. Wear resistant applications last longer when the coating is applied more than 1/8 thick. 13. In what service temperatures can Coating be used? Wear-Flex XPress cured coatings can be used in service temperatures from -20 F up to 200 F (-29 C up to 93 C). 14. Is Wear-Flex XPress chemically resistant? It has good resistance to inorganic bases, acids and hydrocarbon solvents and fair resistance to oxygenated and chlorinated solvents. See the included chemical resistance chart or contact tech services for more information. 10

12 Wear-Flex XPress Spray Frequently Asked Questions: 15. What colors are available? Wear-Flex XPress is currently available in black, dark gray, light gray, beige, pewter, desert sand, red, dark blue, dark green, yellow and white. 16. Is Wear-Flex XPress USDA authorized for application in plants that operate under USDA regulations? In 1995, the USDA issued an FSIS directive that stated the application of any paint or coating in a USDA inspected facility must be discussed with and cleared by the onsite inspector. Partsmaster certifies that this product contains no carcinogens, mutagens, teratogens, heavy metals or other known hazardous substances. Therefore, Wear-Flex XPress is suitable to coat floors, walls and other similar non-food contact surfaces in Federally Inspected Meat and Poultry Establishments if the on site inspector reviews and approves of the method of application. All food must be removed from the area to be coated and not returned until the coating is completely dry and all odors from the curing process have been removed by proper ventilation. 17. Is a Wear-Flex XPress surface repairable? Yes, you can re-spray the surface after cleaning to remove contaminants. 18. Does Wear-Flex XPress meet VOC requirements? Yes, it meets the requirements in all 50 states. It is 100% solids and does not contain any VOC s or CFC s. 19. What is the product warranty? The product is warranted to have a 6 month shelf life in unopened containers and to be free from manufacturer s defects. It is not warranted to be suitable for a particular application or use. 20. Can Wear-Flex XPress be used outdoors? Yes, the white may yellow in sunlight, but otherwise will be unaffected. 21. What is the lowest temperature that Wear-Flex XPress can be sprayed? The cartridges must be at least 77 F but the surface and the air temperature can be much lower. It bonds well to most surfaces down to 50 F without heat but can be applied down to 0 F if you warm the surface to 90 F and continue to keep it warm for 30 minutes after application. 11

13 Frequently Asked Questions: 22. Can Wear-Flex XPress be painted? Yes. Cured coating can be painted as long as the surface is clean. 23. How do I remove overspray from my skin? Mega-Prep wipes or rubbing alcohol will remove it with scrubbing if used soon after spraying 24. Will Wear-Flex XPress seal a porous surface? Wear-Flex XPress conforms to the surface to which it is applied. It will seal a porous surface if a thick enough coating is applied to fill the pores. To seal a porous surface with less spray, use Mega-Gel prior to coating with Wear-Flex XPress. 25. Will Wear-Flex XPress seal a crack? When sprayed, Wear-Flex XPress conforms to the surface and will not bridge gaps or cracks wider than the thickness of the coating. A horizontal crack can be filled without using any air flow to the aspirator tip. Due to its liquid nature, Wear-Flex XPress will not fill a vertical crack.

14 Partsmaster, A Division of NCH Corp. P. O. Box Dallas, TX M