Pre-heat is key. I have a Hakko FR1012 that has paid for itself many times 
over in situations like yours. Check out:

http://www.hakkousa.com/detail.asp?PID=4211&Page=1


----- Original Message ----- 
From: "Luan Nguyen" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, August 26, 2008 9:26 PM
Subject: [TN] solder vertical fill on thermal pad


Dear All,
we are having a problem about hand soldering (lead-free) for some PTH parts 
mounted on thermal pad. Solder vertical fill is difficult to up 75%. Can you 
help us some conditions and technics related for this problem.
Thanks

***************************
Nguyen Hoang Luan
QC&Training Supervisor
Spartronics VietNam Co, Ltd.
No.3, Street No.6, VSIP
Th An Dist., BDuong Prov., VN
Tel: (84-650) 784 890
Fax: (84-650) 784 891
Mobile: 090.3.667448
Email: [log in to unmask]
***************************

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