VFI®-2839 95 A Aliphatic Spray Coating

VFI®-2839 95 A Aliphatic Spray Coating

VFI-2839 95 A Aliphatic Spray Coating is a fast-setting, two-part polyurea rubber that is best applied by spray as an encapsulant material to protect edges on smaller pieces like table edging. It has excellent physical properties such as color stability, moisture insensitivity, and durability for versatile applications in indoor and outdoor environments. Good chemical and solvent resistance allow the material to withstand harsh environments and climate changes.

VFI-2839 95 A Aliphatic Casting Rubber from VFI is a sprayable polyurea rubber for creating large, flexible molds and lightweight castings.

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Features & Benefits

  • Completely UV stable for outdoor and indoor use
  • Smooth finish with great flexibility
  • Offers easy, fast-setting spray application
  • 100% solids and 0 VOCs
Frequently Asked Questions

Instructions for Use:

Surface Preparation

Ensure all surfaces are properly prepared before spraying or injecting the material. Surfaces must be clean and free of contaminants such as dirt, dust, or debris. A release agent must be used on all products intended for demolding to prevent unwanted adhesion and extend the life of the molding surface. When enhanced adhesion is needed, use VFI-#11 on cementitious and masonry surfaces. Steel should be white blasted per SSPC-SP10 to remove all dust, coating, and mill scale. Sandblast or shot blast all concrete surfaces to achieve a profile equal to 80-100 grit sandpaper.

Application Process

Premix the B side (Poly) until uniform before use. Mix times may vary based on volume and mixing method. VFI-2839 must be brought to a minimum of 65°F for proper mixing and application. When spraying, it requires heated, airless plural component spray equipment capable of producing a minimum spray pressure of 2,000 psi and heat between 140°F-160°F. Spraying at higher pressures, between 2,000-3,000 psi, may provide better mixing and optimal physical properties. It can also be used in an injection molding system.

The sprayable rubber should be applied in layers at least 40 mils thick, but applications of 80 mils or more will produce the most optimal results. Allow the first coat to become tacky before applying additional coats and stay within the 20-minute recoat window. If the coating fully cures between coats, it may cause delamination.

Cleanup

The preferred cleanup solvent is xylene or MEK. When flushing out spray lines, we recommend using VFI-8005 Pump Flush to fully clean out the lines.

Safety

*Always read the safety data sheet before working with chemicals

Use chemicals only as directed and for their intended purpose. Do not dispose of chemicals down the drain. Most chemicals must be disposed of as hazardous waste.

PPE to avoid all unnecessary exposure:

  • Eye protection – wear approved, fitted dust or splash-proof chemical safety goggles and face protection such as a face shield
  • Hand protection – wear chemically resistant protective gloves (nitrile, butyl, or neoprene)
  • Skin and body protection – wear suitable protective clothing
  • Respiratory protection – in case of insufficient ventilation, wear suitable respiratory equipment. Respirator selection must be based on known or anticipated exposure levels, the hazards of the product, and the safe working limits of the selected respirator

Product Limitations

VFI-2839 contains aliphatic isocyanate, which can irritate the skin and is toxic if inhaled as particulate matter. Avoid prolonged breathing of vapors and repeated skin contact by utilizing proper PPE. Protect the material from moisture exposure, as water will cause the A side (Iso) material to generate carbon dioxide, resulting in high pressure in closed containers. It should also be protected from freezing and kept above 60°F.

  • Incompatible materials – A side: amines, strong bases, water, alcohols, and heavy metals. B side: acids
  • Conditions to avoid – A side: contamination occurs with water. Keep away from heat, ignition sources, and incompatible materials. B side: heat and incompatible materials
  • Chemical stability – stable under normal storage conditions
  • Reactivity & hazardous reactions – no dangerous reaction known under normal use
  • Hazardous decomposition products – may include but are not limited to oxides of carbon and oxides of nitrogen as well as isocyanates for the A side

Potential Health Hazards

  • Material on both sides may cause respiratory tract irritation if inhaled. A side material may cause allergy and asthma symptoms or breathing difficulties. B side material may cause burns.
  • Causes skin irritation and sensitization: redness, edema, drying, defatting, and cracking of the skin. B side material is toxic in contact with the skin and causes severe skin burns.
  • Causes serious eye irritation or damage: discomfort, pain, excess blinking and tear production, marked redness, and swelling of the conjunctiva. B side material may also cause burns.
  • May cause stomach distress, nausea, or vomiting if swallowed.

*If you are experiencing any of these symptoms, seek medical advice or attention. Call a poison control center or doctor if swallowed.  

Click here for more information on the full technical data sheet.

Application Methods:

  • Spray Spray
  • Inject Inject

Available Packaging:

  • Tote
  • Drum
  • 5 Gallon

Frequently Asked Questions

How much does it cost?

VFI strives to keep our prices competitive, but it ultimately depends on the availability of raw materials and the materials used in the formula. Also, polyurea hybrids when compared to pure polyurea coatings provide a good balance of properties, moisture insensitivity, and price.

What happens if the bedliner is damaged? Is it repairable?

Yes, Volatile Free, Inc. offers a bedliner repair material called VFI-520 QS Bedliner Repair that you can use on scratches, blisters, and other damages. It can be applied by brush or injected using the VFI-7500 Qwik Spray Gun.

How to clean spray on bedliner?

Regularly remove dirt, debris, and other grime that has built up from use. You can use a hose or a pressure washer to clean the truck bed with soap and water. Avoid harsh chemicals that may damage the material.

How long do polyurea hybrid coatings last?

When applied correctly and regularly maintained, a spray on truck bedliner should last the entire life of the truck. If repair is needed, VFI offers a thickened polyurea hybrid as a repair material for scratches, gouges, and other blemishes.

Will the bedliner fade over time?

Yes. All VFI bedliners are aromatic, which means they are not UV-stable. If you want to maintain the color of your bedliner, you’ll need to apply a clear aliphatic top coat like VFI-2580.

How soon can the truck bed be used after spraying?

We recommend waiting at least 4 hours after application for light use of your truck bed and a full day (24 hours) before heavy-duty use. The bedliner will gain full strength and formulated properties 5 days after application.

How much material do I need to coat a truck bed?

When spraying VFI-544, we recommend using 6 cartridges (a full case). A full case is just under 2 gallons of material and gets you around 100 mils thick without any loss.

VFI-542 and VFI-543 can be ordered in drums or totes, so about 2 gallons from those containers will also coat one truck bed at around 100 mil thickness without any loss.

How thick should I apply the bedliner?

VFI recommends applying the material at a minimum of 80 mils for long-lasting results.

How long does it take to spray a truck bed?

It can take 2-4 hours to prepare the surface by sanding or priming, tape off areas you don’t want material to get onto, and then spray the truck bed.

Do I need a primer?

Primers are usually not required on properly prepared metal surfaces. Scuff the areas you are coating with a wire cup brush sander or 40-grit sandpaper. If you need a primer, VFI recommends either VFI-1016 Steel Primer or VFI-1017 Porous Surface Primer.

What surface prep is required before applying spray on bedliner?

The surface must be cleaned with acetone before application. Tape up the truck bed with wire trim tape and shield surfaces from overspray with plastic or paper sheets. Scuff sand the area you are coating with a wire cup brush sander or 40-grit sandpaper. Primers are usually not required if the metal is properly prepared.

What temperature should I use the material at?

VFI spray on bedliners must be sprayed between 40°F and 100°F. The cure speed of the material will increase if the temperature passes 72°F.

Does your spray on bedliner come in different colors?

VFI high-pressure, low-pressure, and Qwik Spray bedliners can be pigmented. The premium colors offered are light gray, red, blue, pewter, yellow, and green. These materials are not UV color stable and require an aliphatic top coat like VFI-2580 to prevent fading.

What kind of packaging do your bedliners come in?

For our high pressure bedliner, it can be purchased in drums or totes. The low pressure bedliner can be purchased in pails, drums or totes. The Qwik Spray formula comes in cartridges with 6 cartridges per case.

Is high pressure material better than low pressure material?

While some manufacturers will tell you that high pressure is better than low pressure bedliners, they both perform as expected. Our low-pressure spray bedliner is an economical option with a lower hardness (40 A) and a slightly slower cure than our high-pressure version. It may provide a slightly thicker texture, better for skid resistance. Either version will still provide the same quality and durability.

What are the application options for your bedliner?

VFI spray on bedliner comes in three formulas: high pressure, low pressure, and Qwik Spray for different processing needs.

Does the spray on truck bedliner withstand temperature extremes?

VFI bedliners offer extended protection from wear in extreme temperatures while maintaining flexibility to prevent cracking. They also form a seamless membrane to keep water from penetrating the surface, preventing rust and corrosion.

How are spray in bedliners better than drop in liners?

Spray in bedliners offer more durability than drop in liners. Drop in liners have to frequently be replaced because they crack, break, and warp over time. Spray in bedliners are an almost permanent solution to protect your truck bed. They form a seamless film over the prepared metal to keep out dirt, debris, moisture, and other contaminants. They are more likely to last the entire lifetime of your truck.

What is the difference between an aliphatic and aromatic bedliner?

Aliphatic bedliners are UV stable and will not fade over time, while aromatic bedliners will fade and chalk over time when in direct sunlight. Most bedliner on the market are aromatic, but VFI offers a clear aliphatic top coat to prevent color fading and degradation.

What is your spray on bedliner made of?

VFI’s bedliners are a cost-effective blend of both polyurethane and polyurea. They offer the best characteristics of each material, including properties, cost, and moisture sensitivity.

Physical Properties

  • Hardness Shore A: 97
  • Tensile Strength: 1200 psi
  • Elongation: 300%
  • Tear Strength: 400 pli
  • Elastic Modulus: 12000 psi
  • Cold Temperature Flexibility: Pass
  • Solid Material Density: 64.3 PCF
  • Adhesion Strength Prepared Steel/Prepared Concrete: >500 lbs/in2

Liquid Properties

  • Solids by Weight: 100%
  • Solids by Volume: 100%
  • Liquid Density A Side: 8.68 lbs/gal
  • Liquid Density B Side: 8.47 lbs/gal
  • Ratio by Volume (A:B): 1A:1B
  • Viscosity A Side: 800 cps
  • Viscosity B Side: 1000 cps
  • Gel Time: 6 seconds
  • Tack Free: 45 seconds
  • Recoat Window: 20 minutes
  • Full Cure: 3 days

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