Spreader Metering rod selection table for RDS production

The actual transfer rate of a coating meter bar for RDS production will be affected by the rheology of the coating, the substrate, and other variables. The purpose of this table is to provide a good starting point for experimentation. In fact, the transfer rate is also affected by the rod shape, because the profile of the rod also has a significant impact on the flow of the paint. Please also note that dry film weight calculations assume a paint density of 1.0 g/cm³.

Steel wire diameter			wet film thickness		Dry film weight		Optional models
(or equivalent)			wet film thickness		Solid content%	65	Wire wound	Die casting
No.	Inches	mm	Miles	Microns	GSM	#/3000	Wire wound	Die casting
3	0.003	0.08	0.30	7.6	4.95	3.04	●	●
4	0.004	0.10	0.40	10.2	6.60	4.06	●	●
5	0.005	0.13	0.50	12.7	8.26	5.07	●	●
6	0.006	0.15	0.60	15.2	9.91	6.09	●	●
7	0.007	0.18	0.70	17.8	11.56	7.10	●	●
8	0.008	0.20	0.80	20.3	13.21	8.12	●	●
9	0.009	0.23	0.90	22.9	14.86	9.13	●	●
10	0.010	0.25	1.00	25.4	16.51	10.15	●	●
11	0.011	0.28	1.10	27.9	18.16	11.16	●	●
12	0.012	0.30	1.20	30.5	19.81	12.18	●	●
13	0.013	0.33	1.30	33.0	21.46	13.19	●	●
14	0.014	0.36	1.40	35.6	23.11	14.21	●	●
15	0.015	0.38	1.50	38.1	24.77	15.22	●	●
16	0.016	0.41	1.60	40.6	26.42	16.23	●	●
17	0.017	0.43	1.70	43.2	28.07	17.25	●	●
18	0.018	0.46	1.80	45.7	29.72	18.26	●	●
19	0.019	0.48	1.90	48.3	31.37	19.28	●
20	0.020	0.51	2.00	50.8	33.02	20.29	●	●
twenty one	0.021	0.53	2.10	53.3	34.67	21.31	●
twenty two	0.022	0.56	2.20	55.9	36.32	22.32	●	●
twenty three	0.023	0.58	2.30	58.4	37.97	23.34	●	●
twenty four	0.024	0.61	2.40	61.0	39.62	24.35	●	●
25	0.025	0.64	2.50	63.5	41.28	25.37	●	●
26	0.026	0.66	2.60	66.0	42.93	26.38	●	●
27	0.027	0.69	2.70	68.6	44.58	27.40	●
28	0.028	0.71	2.80	71.1	46.23	28.41	●	●
29	0.029	0.74	2.90	73.7	47.88	29.42	●
30	0.030	0.76	3.00	76.2	49.53	30.44	●	●
31	0.031	0.79	3.10	78.7	51.18	31.45	●
32	0.032	0.81	3.20	81.3	52.83	32.47	●	●
33	0.033	0.84	3.30	83.8	54.48	33.48	●
34	0.034	0.86	3.40	86.4	56.13	34.50	●	●
35	0.035	0.89	3.50	88.9	57.79	35.51	●	●
36	0.036	0.91	3.60	91.4	59.44	36.53	●	●
37	0.037	0.94	3.70	94.0	61.09	37.54	●
38	0.038	0.97	3.80	96.5	62.74	38.56	●	●
39	0.039	0.99	3.90	99.1	64.39	39.57	●
40	0.040	1.02	4.00	101.6	66.04	40.59	●	●
42	0.042	1.07	4.20	106.7	69.34	42.62	●	●
44	0.044	1.12	4.40	111.8	72.64	44.64	●	●
45	0.045	1.14	4.50	114.3	74.30	45.66	●	●
46	0.046	1.17	4.60	116.8	75.95	46.67	●
48	0.048	1.22	4.80	121.9	79.25	48.70	●	●
50	0.050	1.27	5.00	127.0	82.55	50.73	●	●
55	0.055	1.40	5.50	139.7	90.81	55.81	●	●
60	0.060	1.52	6.00	152.4	99.06	60.88	●	●
65	0.065	1.65	6.50	165.1	107.32	65.95	●	●
70	0.070	1.78	7.00	177.8	115.57	71.03	●	●
75	0.075	1.91	7.50	190.5	123.83	76.10	●	●
80	0.080	2.03	8.00	203.2	132.08	81.17		●
85	0.085	2.16	8.50	215.9	140.34	86.25		●
90	0.090	2.29	9.00	228.6	148.59	91.32		●
95	0.095	2.41	9.50	241.3	156.85	96.39		●

Actual coverage is also affected by the rheology of the coating and other factors.
Dry film coating weight calculation assumes a coating density of 1.0g/cm³
GSM = grams per square meter
#/3000 = number of tables per 3000 square feet
% solids are by volume

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