BCS

Asbury Coverflux 770 (tm)

Aluminum Casting Foundry Flux



-LOW SMOKE-

- KEEP OUT OF REACH OF CHILDREN -

 


Description:

BCS is pleased to offer Asbury 770 Coverflux for aluminum casting.  Asbury Coverflux 770 is a professional grade cleaning and drossing flux. It promotes low metallic content in the dross (less wasted metal) and aids in keeping furnace walls clean.  It has good cleaning and easy skimming properties.  This flux is used in both crucible and reverb type furnaces when the temperature is in the 1275-1350 Deg F. range.


What It Does:

Flux is a necessity when using scrap material in the melt. It helps impurities and slag (crud) float to the top of the melt. It also creates a floating layer on top of the molten metal that protects the molten metal from oxidation.

When the metal has melted the dross layer is skimmed off and second application of flux is stirred in. After the second application has had time to react, the final dross is skimmed off to reveal a clean, mirror like pool of molten metal. This process will result in a better surface finish and improved material strength in your part.

Using a good flux helps to recover metal that would otherwise be stuck to the dross and lost in skimming. Can be used in hot crucibles or reverb furnaces.


How To Use It:

Only a small quantity is needed (see chart below), so 3 Lbs will provide many melts! Use 1/4 to 1/2 lb. BCS flux per 100 lb. of molten metal, depending on cleanliness of the melt. Apply 1/2 of the flux with the initial solid charge.

Heat the charge to pouring temperature. Skim the initial dross from the melted charge and carefully stir in the remaining flux to the molten metal. A powdery reddish color dross low in metallics will result. The metal is now ready to be skimmed of final dross and poured. Do not exceed 1420 degrees Fahrenheit.

For small batch use the following amounts are recommended:

Crucible Size

Pounds Aluminum

Initial Charge

Molten

 #2

 2 lb.

 1/2 tsp.

 1/2 tsp.

 #4

 4 lb.

1 tsp.

1 tsp.

 #6

 6 lb.

2 tsp.

2 tsp.

 #8

8 lb.

2 tsp.

3 tsp.

 #10

 10 lb.

3 tsp.

3 tsp.

 #16

 16 lb.

4 tsp.

4 tsp.


Fluxing Tool:

A good way to apply small amounts of flux or degasser to the molten charge is to use a fluxing tool. Here's how to make one.


Technical Literature & MSDS:

This file is in an Adobe Postscript file format.  You can download a free copy of the Adobe Acrobat Postscript Reader if you need one by clicking here:


Ordering Info:

FREE SHIPPING ON ALL ITEMS!
(In the lower 48 states)

Item
Description
Qty
Price
 
#2003
Aluminum Flux
Pint Can
$22.50

#2004
Aluminum Flux
Quart Can
$33.00


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Revised: 2-21-08