Solder Soldering Paste Flux RMA 223 and Hot air gun.

[semiconductor]

Hello everyone,
I'm trying to solder a 1284P TQFP-44 by Solder Soldering Paste Flux RMA 223 and Hot air gun.
I see some video about Hot Air soldering techniques, so I'm trying to follow these.
I do not understand why, whenever I heat up , the solder paste (Solder Soldering Paste Flux Grease RMA 223) melts, but the 1284P does not solder to the pcb.

Thanks
s.

 

[Martaine2005]

https://www.google.co.uk/search?q=soldering+paste&ie=UTF-8&oe=UTF-8&hl=en-gb&client=safariRMA 223 is FLUX.
You need solder PASTE.



Martin

 

[semiconductor]

https://www.google.co.uk/search?q=soldering+paste&ie=UTF-8&oe=UTF-8&hl=en-gb&client=safariRMA 223 is FLUX.
You need solder PASTE.



Martin

Could you give me your feedback about this solder paste:

Baku Bk-6352

thanks
s.

 

[Martaine2005]

The website looks good.
I have never used it but am sure it’ll be ok.
I don’t use lead free solder or paste so can’t give an opinion on it.
I personally don’t like lead free solder.

Martin