8351 No-Clean Halogen-Free Flux 8 3 51 is a o r ganic li qui d so l der fl ux w it h l ow ac t ivit y. It has a l ow so li ds c o ntent t hat leave s vir tually no re si due. S o lder j oint s app ear shiny af ter so lder ing, even w it hout c leaning. T his hal o g en f ree fl ux is t he b e st so lder ing fl ux fo r wave so l der ing and sur fac e m ount as sembly. It may b e appli e d by spr ay o r foam, o r by wave fl ux ing. It is also re - fl owable in air o r nit ro g en. In li qui d fo r mat , we also of fer ro sin - base d fl ux, lead - f ree no - c lean fl ux, and lead - f ree water so luble fl ux. Fo r paste fl ux, visit M G Chemic als 8 3 41 and 83 42. Properties Features & Benefits H al o g en - f ree fl ux Flux Clas si fi c at i o n O RL0 E xc ellent wet t abilit y Flux Ty p e O r ganic Can b e use d w it h b ot h lead - f ree and leade d Flux Ac t ivit y Low alloys C o pp er M ir ro r Pass Ro sin /re sin - f ree Cleaning Requirement s Rec ommended M eet s J - ST D - 0 0 4B Ac i d N umb er (m g KO H /g s ample) 1416 Ro H S - c o mpliant H ali de s (by wei ght) < 0.5 % 9 Sufac e Insulat i o n Re sist anc e (SI R) 2.1 x 10 Available Packaging Cat. No. Packaging Net Vol. Net Wt. 8351-125ML Bottle 125 mL 101 g 8351-1L Bottle 1 L 809 g Typical Lead-Free Wave Solder Profile 8351-4L Jug 4 L 3.23 kg 300 8351-20L Pail 20 L 16.1 g 250 Time in wave: 2.5 - 5 s 200 Preheat Zone Bottom side: 60 s 120 - 145 C Contact Information Top side: 60 s 85 - 110 C 150 M G C h e m ic a l s , 1210 C o r p o r a t e D r i ve 100 Flux Zone B u r l i n g t o n, O nt a r i o, Ca n a d a L7 L 5 R 6 Max ramp up: 2 C/s 50 Ema il: s u p p o r t m g c h em i c a ls .c o m 0 P ho n e: N o r t h A me r ic a: + (1) 8 0 0 - 3 4 0 - 07 72 0 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240 I nt e r n a t i o n a l: + (1) 9 0 5 - 3 31-13 9 6 Time (sec) Bottom Side Preheat Eu ro p e: + (4 4)16 6 3 3 6 2 8 8 8 Top Side Preheat ISO 9001:2015 Quality Management System. Burlington, Ontario, Canada SAI Global File: 004008 20 October 2021 / Ver. 3.0 1 Temperature (C)8351 Application Instructions Foam Flux Read t he pro duc t S DS b efo re using t his pro duc t T he foam fl uxer should b e provi de d w it h t he (dow nl oadable at w w w.m gc hemic als.c o m). c o mpre s se d air 1. A pply fl ux o n t he sur fac e by dip, spr ay, foam, o r Flux t ank must be al ways f ull br ush applic at i o n. Sur fac e of t he fl ux should b e 0. 51 ab ove t he to p 2. Clean re si due w it h M G 413 B, 413 C, 414 0, 4 0 5 0A , of t he fl ux aer ato r o r fl ux sto ne o r 414 0A fl ux rem over s. Adjust pre s sure to o pt imize foam hei ght w it h a fi ne uni fo r m foam head A f ter fl ux ing, use an air k ni fe to rem ove exc e s s fl ux Wave Solder Operating Parameters f ro m t he mac hine A m ount of Flux: 2 To c he c k fo r uni fo r mit y of spr ay fl ux c oat ing, r un Foam 1 000 2000 g /in so li ds 2 a temp ere d glas s plate provi de d by t he mac hine Spr ay 750 150 0 g / in so li ds manufac tuer t hrough t he fl ux and preheat zo ne s. Foam Flux ing Par ameter s: Ensure to insp e c t t he glas s befo re t he wave zo ne. Foam Sto ne Po re S ize 20 5 0 m Flux Leve l A b ove Sto ne 25 4 0 mm Chimney O p ening 10 13 mm Storage and Handling 2 A ir Pre s sure 12 lb/ in Sto re b et ween 18 and 27 C in a dr y area, away f ro m To p S i de Preheat Temp. 85 110 C sunli ght (see S DS). B ot to m S i de Preheat Temp. 3 5 C C onveyor- speed 1. 2 2. 8 m /min C o nt ac t T ime in S o l der 2. 5 4. 5 s S o l der Pot Temp. Sn 9 6. 5 /Ag3. 5 26 0 276 C Sn 9 5 /Ag 5 28 0 29 6 C Sn 9 9. 3 /Cu 0.7 26 5 276 C Sn Ag Cu 271276 C Sn 9 5 /Sb 5 28 0 29 6 C Disclaimer T his info r mat i o n is b e li eve d to b e ac c ur ate. It is intende d fo r profe s si o nal end - user s w ho have t he sk ills re quire d to evaluate and use t he dat a pro p er ly. M .G . Chemic als Ltd. do e s not guar antee t he ac c ur acy of t he dat a and as sume s no liabilit y in c o nne c t i o n w it h damage s inc ur re d w hile using it . ISO 9001:2015 Quality Management System. Burlington, Ontario, Canada SAI Global File: 004008 20 October 2021 / Ver. 3.0 2