How to pack vinyl records
well apart from the ready made mailers that you can buy,that eat into your profits as they do not work out cheap.I go to the supermarket and get boxes from the produce department(Fruit & Veg)because they are thicker,I cut out and make a template for the different size records 7'',10'',12''.
The templates you need to make half an inch bigger than the record covers so for a 7'' record You would make the template 7.5x7.5 and so on for the different sizes.
Then when you need some you use the template to cut out your cardboard from the boxes.
I normally put a bit of card either side and then tape it with a strip of paper on all four sides the record id nicely protected then,I then bubblewrap and put in a plastic mailing sack and there you go easy enough, I have never had a breakage.
For 10 shellac 78rpm records it is a bit different as these are very fragile I once had a breakage, so I changed the way I packed them from the above to doing all of the above and then putting them in a box about an inch larger than your pack all round ,surrounded by shredded paper or the foam type packing chips you can buy,the paper way is cheaper,never had a breakage afte that, but it does cost more to post these should cost you about £4.99 standard parcels or more if you want to post recorded or special delivery.
If you want anymore information just message me through ebay or that other well known auction site that begins with an E and ends with a D .