Based on our own EXPERIENCE, this solder kit is an exceptional solution for industrial and scientific applications.The aluminum formulation ensures a reliable and sturdy soldering joint that is built to last. The water-soluble feature of the product is an added bonus, as cleanup is quick and effortless. The only con we could think of is the slight learning curve required to use the syringe correctly. Overall highly recommend this product for anyone seeking an efficient and durable soldering solution..