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Ratio of Blue 60 Packers per tin of Blue 60 Foam
There are 10 fixing points per frame with the correct gaps of 7/9mm = 3 packers per fixing - 30 packers per frame.
One can of Blue 60 with correct gaps of 7/9mm is enough for 3 doorsets, equalling 90 packers per can plus extra packers for shimming under the frame to square the head due to uneven floor surfaces equates to 100 packers required per can.
If the gaps are bigger then more foam and packers are required on a pro-rata basis.
To summarise 33 of each size of packer is required per can of foam and there are 3 different sizes of packer.
Per box there are 4 bags x 100 of each size of packer are required.
