TQC Sheen Pretreatment Test Kit (PTK)

Why pretreatment inspection matters

A coating fails from the substrate up. Even small quantities of soluble salts trapped under a paint layer attract moisture through their hygroscopic action, leading to blistering, corrosion under the coating and premature paint system failure. Recycled blast media becomes contaminated with soluble salts from previous work, transferring those salts to every surface it cleans. Blasted surfaces may look perfect, but salts are one of the most harmful contaminants and cannot be seen with the naked eye.

The Pretreatment Test Kit gives paint inspectors a portable set of tools to control every relevant parameter before coating is applied – soluble salts, dust, blast media contamination, surface profile, edge condition and cleanliness.

Basic Kit vs Full Kit

Basic Kit (SP7315) contains:

• Bresle Test Kit (SP7310) with conductivity meter and 25 Bresle patches for surface soluble salt measurement to ISO 8502-6 and ISO 8502-9 using the Direct Sampling Procedure (DSP).
• Dust Test kit for surface cleanliness assessment per ISO 8502-3.
• Telescopic inspection mirror.

Full Kit (SP7316) adds:

• UV pocket flashlight – detects organic contamination (fat, grease, alkaline residues) that fluoresces under UV and cannot be seen with the naked eye. Contamination that blasting alone cannot remove.
• Multi-functional stainless steel inspection tool – ISO 2409 cross-cut adhesion tests at 1, 1.5, 2 and 3 mm spacing, X-cut Andreas cross, wet film thickness gauge 50 to 160 microns, and edge grind check for correct edge roundness.
• Additional accessories for determining contamination levels in recycled blast media.
• A number of optional items that can be selected against specific inspection standards – see the datasheet or contact us to configure.

If you only need to measure surface soluble salts, the Bresle Test Kit (SP7310) is available as a single-purpose alternative to the full PTK.

Standards

ISO8502-6 and 9, IMO MSC.215(82), IMO MSC.244(83), ISO8502-3, ISO 8502-4, BS 7079-B4, US Navy NSI 009-32, US Navy PPI 63101-000, ASTM D4417 – B, ISO 2808-3, ASTM D4138, ISO8501-1:2007, ISO 8503 part 1and 2, ASTM D 4417 Method A, ASTM E2501, ISO 2409 :2003 and ASTM D3359.