TM 1-4220-250-12&P
4.8.1
Cementing the LRU-18/U Life Raft (Continued).
c.
Prepare adhesive (D1) and accelerator mixture. Prepare only enough mixture for 8 hours use, as this is the
effective active period for this mixture. Dispose of any remaining mixture at this time.
d.
Using a small disposable brush (D2), apply adhesive to completely cover surfaces to be cemented. Use long,
one-direction strokes and complete each surface before adhesive becomes tacky as the brush may pull tacky
adhesive from the surface. Allow to dry for 10 minutes.
e.
Apply a second coat of adhesive as in step d. Use brush strokes perpendicular to the original direction.
f.
When second coat of adhesive has become tacky, place pieces together. If the cemented area has a cut or
tear, butt the damaged edges together before applying the patch. Roll out air bubbles with a wooden (D14) or
rubber roller. Inspect for proper application/cement.
g.
Place a small weight over cemented area and allow to cure for a minimum of 60 hours.
h.
Dust area with talc (D17).
END OF TASK
4-17
