美国ASTM D 3359胶带法测试附着力标准
ASTM D 3359是美国材料与试验协会附着力测试标准,下面我们就来大概说下此标准对附着力测试的要求,一般来说,涂层的厚度超过125μm则选择划“X”法测试,涂层的厚度小于125μm则选择划格法测试.
划“X”法:一个X-槽贯通涂层和底材 ,在切口上放置和移除胶带,粘附力按照0-5质量等级进行评估.
在漆膜划两条交叉的各40mm长的直线,交叉角度30-45度,切割时,使用直线切割,并割到底材.然后使用一块75mm长的胶带贴在切割交叉处,60秒后撕开胶带,观察X区域油漆脱落情况:
*:没有剥落
4A:在交叉处有剥落的痕迹
3A:在交叉到另一面1.6mm有锯齿状剥落切口
2A:在交叉到另一面3.2mm有锯齿状剥落切口
1A:在X区域有大面积剥落
0A:在X区域全部剥落
ASTM D 3359胶带法测试附着力标准
划格法:在涂层与底材之间切割六或十一晶格形态的截割切片,在晶格之间施加和移动胶带,粘附力通过图表描述对比来做评估.主要通过划格刀完成.
![](http://zt.yzimgs.com/comfolder/409823/image/201501/20150121180957_9196.png)
1.涂层厚度在50μm内,划格刀切割间距为1mm,共11条线.涂层厚度在50-125μm内,划格刀切割间距为2mm,划6条线.划割时,压力需要均匀并且切割到底材.
2.切割完成后,用毛刷轻轻刷去剥落的粉末
3.贴上胶带,并将胶带贴紧,可通过胶带下的颜色判断是否完全解触
4.60秒后,撕下胶带,观察油漆的剥落情况
5B:切割区域比较平滑,五剥落粉末
4B:在交叉处有少量剥落,小于面积的5%
3B:在割线和交叉处有少量剥落,剥落为5-15%网格面积
2B:有部分格子完全脱离,剥落为15-35%网格面积
1B:大面积剥落,剥落为35-65%网格面积
0B:过1B的标准
美国ASTM D 3359胶带法测试附着力标准
英国ElcometerT9998894(ASTM D3359)百格测试胶带
Elcometer99百格附着力测试胶带
T9998894 Tape (Elcometer 99 Tape):
2010 年7 月,Elcometer 99胶带面世了。此款胶带用来替代Permacel P99 胶带,遵守ASTM D3359标准。该标准是使用胶带来测量附着力的十字划割附着力测试方法。
ASTM D3359专用测试胶带详细资料:
规格:25mm×81m
包装规格:2卷一包装(可以单独散卖)
T9998894 Tape (Elcometer 99 Tape):
产品特性比较参数:
Material Description |
Adhesive Type |
90 Second Peel Test (oz/in) |
Elongation (%) |
Tensile Strength (lbs/in) |
Shelf Life (months) |
Permacel P99 |
Synthetic Rubber |
44 |
5% |
42 |
12 |
Elcometer 99 |
Synthetic Rubber |
45 |
3% |
50 |
12 |
NEW ADHESIVE TAPE AILABLE FROM ELCOMETER
We are pleased to announce the ailability of a new adhesive tape, Elcometer 99 Tape, for use with ASTM Method D3359.
Permacel P99 tape which is referenced in the footnote of ASTM method D3359 for Standard Test Method for measuring adhesion by tape test also known as Cross Hatch and Cross ut Adhesion Testing, has been discontinued by the manufacturer and is no longer ailable. Elcometer 99 Tape has been specially formulated to be a near equivalent to the Permacel P99 tape and is therefore a suitable replacement for this tape.
K0001539M001 Elcometer 99 Adhesive Tape (for use with ASTM D3359), 1 Roll
T9998894- Elcometer 99 Adhesive Tape (for use with ASTM D3359), 2 Rolls
Elcometer 99 Adhesive ASTM Tape is the replacement item for Permacel 99. (60 yrd roll)