CPC A62C 3/00 (2013.01) [F16L 59/026 (2013.01)] | 6 Claims |
1. A method of injecting a liquid fire retardant onto and into hemp insulation batting having six sides comprising:
a) selecting a device which delivers a liquid fire retardant under pressure to a plurality of injection needles having one or more holes;
b) positioning the plurality of injection needles such that they do not move substantially relative to one another;
c) pressing the plurality of injection needles into the hemp insulation batting;
d) delivering the liquid fire retardant to the plurality of needles such that the liquid fire retardant exits the plurality of injection needles through the one or more holes; and
e) removing the plurality of injection needles from the hemp insulation batting.
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