Product Name : Water-Based UV Primer
Product No : W-185
Product Description

Water-Based UV Primer is a water-based primer for paper coating industry. It has medium viscosity, low toxicity, and good adhesive property. Application with UV roller varnish provides the best adhesive property for paper roller coating.


W-185 is a water-based primer for paper coating industry. It has medium viscosity, low toxicity, and good adhesive property.  Application with UV roller varnish provides the best adhesive property for paper roller coating.


Appearance/Color Milky White Liquid
Major components Acrylic resins
Solid Content 38 %
Viscosity (Ford Cup #4, 25℃) 80 ± 10 sec
PH 7.5~8.5
Gloss (60°) 75 ± 5

Safety and Notes

  1. The product is able to dilute with water in order to adjust the viscosity before the usage. Added percentage: 10%~15%.
  2. The product can be cleaned by water.
  3. Storage: keep away from high temperature, high humidity and direct sun-light; keep tightly closed while storing.
  4. Product expiration: sealed, 12 months.
  5. The product contains no organic solvent, and it is non-flammable; low toxicity and extremely mild irritation, so it is harm less to use. When operating, wear neoprene gloves and PVC chemical resistant suit and charcoal filtered mask to prevent direct contact and inhalation. If contacted with skin, use soap and water to remove contaminants, if contacted with eyes, rinse immediately with large amount of fresh distilled water or sterilize with 0.9% brine.
  6. Auto-ignition: none.  Fire fighting material: foam or CO₂ extinguisher.


20Kg, 125kg, 200Kg plastic drum


  • Trade Name : Water-Based U.V Primer
  • Product Code : W-185
  • Product Class : Acrylic Emulsion
  • Generic Name : Water-Base Paper Coating varnish
  • Manufacturer's name:
    Address: No. 31, Alley 12, Lane 261, Sec 2, Xi Yuan Rd, Taipei, Taiwan, R.O.C.
    Tel : 886-2-2339-2714 / Fax : 886-2-2339-5855
    Http: / E-mail:


Health Hazards:

  • Inhalation: May cause irritation of the respiratory tract, experienced as burning sensation of eyes, nose, and throat, sneezing and nausea.
  • Eye Contact : Liquid may cause discomfort in the eye with slight excess redness and possibly swelling of the conjunctiva.
  • Skin contact : Brief contact is not irritating. Prolonged contact, as from clothing wet with the material, may cause mild irritation, experienced as discomfort, and seen as local redness.
  • Skin Absorption : No evidence of harmful effects form available information.
  • Swallowing : No evidence of harmful effects form available information.


(% Chemical Component by WT.)
  CAS# WT.%
Acrylate monomer 42978-66-5 40
Water 7732-18-5 56
Ammonia 7664-41-7 4



  • Remove to fresh air. Consult physician/medical help if respiratory is not relieved by fresh air.

Eye Contact:

  • Immediately flush eyes with water and continue washing for several minutes. Remove contact lenses, if worn. Obtain medical attention.

Skin Contact:

  • Remove contaminated clothing. Wash skin with soap and water. If irritation persists or if contact has been prolonged, obtain medical attention.


  • Wash out mouth with water, do not induce vomiting. Consult physician.


Fire point and auto-ignition temperature:

  • Auto-ignition temperature: Not currently available.

Extinguishing media:

  • Non-flammable (aqueous solution): After water evaporates, remaining material will burn. Apply alcohol-type or all-purpose-type foam by manufacturers’ recommended techniques for large fires. Use water spray, carbon dioxide or dry chemical media for small fires.

Extinguishing Media to Avoid:

  • No information currently available.

Special Fire Fighting Procedure:

  •     No information currently available.

Special Protective Equipment for Firefighters:

  • Use self-contained breathing apparatus when fighting fires in enclosed areas.
  • Hazardous polymerization may occur under fire condition, and toxic fumes may be released

Unusual Fire and Explosion Hazards

  • Product will not burn but may spatter if temperature exceeds boiling point of water.


Steps to be taken if Material is Released or Spilled:

  • Small spills can be flushed with large amounts of water: larger spills should be collected for disposal.

Personal Precautions:

  • Wear suitable protective equipment. See Section 8.2-Personal Protection.

Environmental Precautions:

  • Not toxic to fish or plans.



  • General Handling
    Avoid breathing vapor from container opening.
    Avoid contact with skin and clothing.
    Keep container closed.
    Use with adequate ventilation.
    Wash thoroughly after handling.
  • Ventilation
    General (mechanical) room ventilation is expected to be satisfactory for use at room temperature.


  • Store above 4℃(40℉).Do not freeze.

  • Respiratory Protection : None required if airborne concentrations are maintained below listed exposure limits. If airborne concentrations exceed listed exposure limits, elect respiratory protection equipment in accordance with OSHA Standard 29 CFR 1910.134. If necessary, use NIOSH approved mist respirator in poorly ventilated areas.
  • Ventilation : General (mechanical) room ventilation is expected to be satisfactory for use at room temperature.
  • Eye Protection : Safety glasses or monogoggles, as appropriate
  • Protective Gloves : Polyvinyl chloride coated.

9. Physical and Chemical Properties

  • Physical State: Liquid
  • Color: Milky White
  • PH: 7~9
  • Decomposition Temp. : >150o C
  • Autoignition Temp. : NA
  • Vapor Pressure: NA
  • Density: 1.0-1.1/20o C
  • Form: White Emulsion
  • Odor: Mild Odor
  • Boiling Point/Boiling Range: >100o C
  • Flash Point&Method Used: NA
  • Explosion Properties: NA
  • Vapor Density: 1 (Air=1)
  • Solubility: Miscible In All Proportions

10. Stability and Reactivity


  • Stable under normal handling conditions.

Conditions to Avoid:

  • Direct sunlight, heat, flames. Contact with acids

11. Toxicological Information

  • Information on analogous products shows minimal toxicity concerns.
    Peroral: Rat LD50>2000 mg/kg

12. Ecological Information

Environmental Fate

  • Not toxic to fish or plants, Does not inhibit bacteria in waste treatment facilities., Polymer is not biodegradable., Product is not RCRA hazardous., The following information is based on analogy with a similar material.

BOD ( % Oxygen consumption )

  • Day 5 Day 10 Day 15 Day20 Day 30


  • Toxicity to Micro-organisms: IC50 > 2000 mg/l
  • Toxicity to Aquatic Invertebrates: Daphnia EC50 > 1000 mg/l
  • Toxicity to Fish: Fathead Minnow LC50 > 1000 mg/l

Further Information


13. Disposal Considerations

  • Waste Disposal Method
    Incinerate in a furnace or otherwise dispose of in accordance with applicable, State and local requirements. Dispose in accordance with all applicable Federal, State, and local environmental regulations. Empty containers should be recycled or disposed of through
    an approved waste management facility.
  • Disposal Considerations
    Does not inhibit bacteria in waste treatment facilities. Polymer is not biodegradable.
    Product is not RCRA hazardous.
    Disposal methods identified are for the product as sold. For proper disposal of used material, an assessment must be completed to determine the proper and permissible waste management options permissible under applicable rules, regulations and/or laws governing your location

14. Transport information


Proper Shipping Name: NOT REGULATED


  • Proper Shipping Name: NOT REGUULATED
This information is not intended to convey all specific regulatory or operational requirements/information relating to this product. Additional transportation system information can be obtained through an authorized sales or customer service representative. It is the responsibility of the transporting organization to follow all applicable laws, regulations and rules relating to the transportation of the material.

15. Regulatory Information

  • It is the responsibility of the user to know and comply with all applicable rules, regulations and laws relating to the product being used.


Prepared by:

  • Address: No. 31, Alley 12, Lane 261, Sec 2, Xi Yuan Rd, Taipei, Taiwan, R.O.C.
  • Tel: 886-2-2339-2714 Fax: 886-2-2339-5855
  • Name: Hsu Wen-Rong
  • Issue date: 2010/6/21


  • Recipients of this Material Safety Data Sheet must make their own assessment of workplace risk as required by other health and safety legislation.


  • The information in this MSDS is correct to the best of our knowledge at the date of publication. It is given in good faith but no warranty is implied with respect to the quality and specification of the product.

1. Purpose:

  • Recommend the customers how to use W-185 mainly, so that they can get the best quality in production.

2. Production division:

  • Coating Department

3. Required production equipment:

  • UV coating machine

4. Operation:

  1. Roller coating machine (Off-line coating)
    1. The best viscosity of coating is 25~45 sec/Ford Cup #4 25℃; The viscosity of this product is 60 sec/Ford Cup #4 25℃. So, it has to be diluted by clean water or 1:1 of water:isopropyl alcohol. The dilution amount is 5%~10%, which depends on the printing paper.
    2. Use short-wave IR oven with wavelength about 0.8 ~ 1.4 μm or hot air oven with condition 24 kw 80℃~ 90℃ for curing. The coating speed is about 60 ~ 70 m/min.
    3. The best thickness of wet film is shown as follows:
      Board card Dark color Light color Gorgeous color White copper Gray copper
      Thickness of wet film 6 ± 2 g/m² 5 ± 1 g/m² 5 ± 1 g/m² 6 ± 2 g/m² 6 ± 2 g/m²
      General speaking, the dry powder may be sprayed onto the printing paper for curing and prevent overlap printing. The diameter of its particle is about 3 ~ 4 μm. Before coating, the powder removal equipment can remove about 50%~70% of powder. The most important thing is part of powder will stick with ink and become hard to be removed. So, in order to get the best coating effect, the coating layer has to cover the particles of powder. The an additional wet layer of 1 ~ 2 g shall be added except the above-mentioned data, which is 6 ~ 8 g/m² of wet film. If the solid content is 40%, 2.4 ~ 3.2 μm of dry film can get the best coating effect.
    4. The surface tension of varnish is about 34.5 dyne/cm2. So the surface tension of dry ink had better larger than the above-mentioned surface tension.
    5. After applying water-based UV primer, UV coating can get the best coating effect. It can pass the tape test.

5. Troubleshooting:

  • A. The gloss is not good, the luminance is not enough.
    (1) Cause
    1. The paper is too coarse, and the permeation and absorbability are too strong.
    2. The coating amount is not enough, and the film is too thin.
    3. The ink on printing paper is not dried enough.
    4. Low temperature, high humidity.
    (2) Solution
    1. Increase the viscosity of varnish.
    2. Check if too much water is added or adjust the roller to increase the coating amount.
    3. Coat after the ink is dried sufficiently.
    4. Improve the operation temperature, humidity of environment.
  • B. Poor curing, Sticky surface, poor wear resistance.
    (1) Cause
    1. The viscosity of varnish is too high, and the film is too thick.
    2. The temperature and hot air is not enough in the oven track.
    3. The coating pressure is uneven, and local film is too thick.
    (2) Solution
    1. Adjust the viscosity of varnish. Use 1:1 of water:isopropyl alcohol as thinner.
    2. Increase temperature and hot air in the oven track
    3. Adjust the coating pressure of roller.
  • C. The coating is uneven with strip and orange skin etc.
    (1) Cause
    1. The viscosity of varnish is too high.
    2. The coating amount of varnish is too much.
    3. The coating roller is coarse and unsmooth.
    4. The ink is not dry, the varnish is repelled.
    (2) Solution
    1. Adjust to reduce the viscosity.
    2. Reduce the coating amount suitably.
    3. Regrind or rebuild the coating roller.
    4. Before coating, let the ink dry sufficiently.
  • D. Too much foam during coating.
    (1) Cause
    1. The viscosity of varnish is too high.
    2. The agitation is over.
    3. The amount of varnish is insufficient in varnish pan and varnish barrel.
    4. The speed of coating machine is too quick.
    (2) Solution
    1. Adjust to reduce the viscosity.
    2. Add suitable amount of anti-foaming agent.
    3. Increase the amount of varnish.
    4. Reduce the coating speed suitably.
  • E. It is difficult to clean the varnish, and the varnish is apt to coagulate.
    (1) Cause
    1. The curing of varnish is too quick.
    2. The time of shutdown is too long, and it is not cleaned in time.
    3. The ambient temperature is too high.
    (2) Solution
    1. Add the retarder or water to reduce the curing speed.
    2. When the machine is shut down temporarily, the operation of varnish circulation system should be kept.

6. Cautions:

  1. After the application, the clean water can be used for cleaning directly.
  2. This product does not contain the organic solvent. It is not self-ignitable, corrosive and explosive. Avoid contacting the skin, eye, and body mucous membrane etc. Use the detergent for cleaning after working for a certain period.
  3. This information is considered correct based on the research, development, and application. Due to the application condition and method can not be controlled by us, it is recommended the test and evaluation should be conducted in accordance with the actual situation before the application.