Hygro-mechanical short-term behaviour of selected coatings: experiments and material modelling on vapour permeability and mechanical properties

Heritage Science

Table 9 Measured stationary density of water vapour flow g through the coated and uncoated PE frits for the three cup test settings of the C-series

RH 0%/50%			RH 0%/85%			RH 95%/50%			RH 95%/50%
specimen		\(g\left[\frac{g}{{m}^{2}\cdot d}\right]\)	specimen		\(g\left[\frac{\mathrm{g}}{{\mathrm{m}}^{2}\cdot \mathrm{d}}\right]\)	specimen		\(g\left[\frac{\mathrm{g}}{{\mathrm{m}}^{2}\cdot \mathrm{d}}\right]\)	specimen		\(g\left[\frac{\mathrm{g}}{{\mathrm{m}}^{2}\cdot \mathrm{d}}\right]\)
C_wg	4	201.1	C_wg	4	590.0	C_wg	1	291.0	C_et	26	209.0
C_wg	5	200.3	C_wg	5	588.6		2	325.0		27	191.0
C_wi	9	55.3	C_wi	9	138.1		3	296.0		28	192.0
C_wi	10	65.7	C_wi	10	161.4	C_wi	6	77.0	C_di	31	325.0
C_rv	14	21.6	C_rv	14	45.0		7	93.0		32	328.0
C_rv	15	25.9	C_rv	15	96.4		8	90.0		33	304.0
C_lv	19	124.0	C_lv	19	302.2	C_rv	11	28.0	C_bw	36	2.7
C_lv	20	112.2	C_lv	20	313.7		12	39.0		37	3.6
C_rc	24	9.4	C_rc	24	47.3		13	30.0		38	4.9
C_rc	25	7.3	C_rc	25	19.9	C_lv	16	160.0	C_tot	41	6.2
C_et	29	118.6	C_et	29	355.4		17	159.0		44	5.4
C_et	30	112.4	C_et	30	346.5		18	164.0		45	6.5
C_di	34	209.3	C_di	34	552.2	C_rc	21	19.4	PE	ref.	495.0
C_di	35	203.3	C_di	35	559.0		22	27.5
C_bw	39	3.0	C_bw	39	10.0		23	22.1
C_bw	40	2.5	C_bw	40	32.2
PE	ref.¹	404.0	PE	ref	760.0