Synonym : Blotter test for painting, Air compressor blotter test, Blotter paper for abrasive cleanliness test, Caltech blotter test paper for air compressor, ASTM D4285 blotter test paper, blotter test for blasting
Caltech India introduce blotter test paper to conduct testing of compressed air as per ASTM D4285 specifications. Blotter paper is used to determine the presence of oil, water, or other contaminates in compressed air used for blast cleaning and coating application. Details can be seen at SSPC-SP 5 (white metal cleaning), SSPC-SP 10 (Near-White Metal Cleaning).
The SSPC/NACE joint standards for abrasive blast cleaning invoke a requirement to verify the cleanliness of compressed air prior to abrasive blast cleaning or other operations, where contaminated compressed air can adversely impact coating performance. The test can be performed with white absorbent blotter test paper. Place the blotter paper in the air flow of the compressor for few minutes and then look for any visible oil and water. Place the blotter test paper mounted on the rigid backing, and the test to be conducted on the discharge point close to the use point, also the test should be done after inline oil and water separator.
Blotter test papers are made from specially 100% cotton fiber. These papers are uniform and smooth. Blotter test papers are produced using ultrapure water. Do not contain any additives. As per ASTM D4285, any oil indication (discoloration of white absorbent paper) is a rejection of air compressor. Similarly, water indication of absorbent paper is not acceptable for blasting work, and air compressor should be rejected and subjected to the repair.
This package consist of pre-cut 10cm x 10 cm square pieces of blotter paper is used to verify compressed air cleanliness. Simply attach a piece blotter paper to a rigid backing using tape and perform the test according to ASTM D 4285. The test should not indicate presence of water or oil in the compressed air. The blotter paper can be marked with the date and time of test and retained for documentation as necessary.
In India, we have various customers from Mumbai, Delhi, Bangalore, Chennai, Hyderabad, Ahmedabad, Kolkata, Surat, Pune, Jaipur, Lucknow, Kanpur, Nagpur, Visakhapatnam, Indore, Bhopal, Patna, Vadodara, Ghaziabad, Ludhiana, Coimbatore, Madurai, Nashik, Srinagar, Aurangabad, Dhanbad, Allahabad and Ranchi in India.
We also export our range of products to worldwide countries like USA, Canada, Chile, United Kingdom – UK, Spain, Germany, Italy, Dubai, Abu Dhabi, U.A.E, Oman, Saudi Arabia, Singapore, Kuwait, Iran, Indonesia, Thailand, and many more as well.
