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. 2018 May 29;10(6):600. doi: 10.3390/polym10060600

Table 5.

Physical test results on white paints based on polyesters PPeF15IS85-PPeF70IS30 and the standard reference resin R.

Test Standard R PPeF15I70S85 PPeF30I70S70 PPeF70I30S30 PPeF70I50S30
Pencil hardness EN13523-4 H 2H 3H H H
Gloss top coat 13523-2 35 39 35 40 39
Reverse impact 80” lb 13523-5 Moderate cracking Moderate cracking Moderate cracking Slight cracking Moderate cracking
Erichsen 7.5 mm 13523-6 Moderate cracking Severe cracking Severe cracking Slight cracking No cracking
T-bend (no tape pick off) 13523-7 0.5T 1T 1.5T 0T 1T
T-Bend no cracking 13523-7 3T 5T 6T 2.5T 5T
MEKa rubs primer BSSP 3.522.11 110 110 110 110 110
Tg, °C (onset/midpoint) 28/35 53/66 51/53 27/34 53/67
Microhardness, N∙m−2 216 237 287 190 270

a Methyl ethyl ketone.