Gerald W. McGrath President October 17, 1996 Mr. Philip L. Johnson Phil Johnson Sales and Associates 30 North Park Street NW P.O. Box 216 Comstock Park, Michigan 49321-0216 Dear Phil: This letter serves as an amendment to our original lease of October...

EXHIBIT 10.10(a)

                           ZIN-PLAS
  X.X. XXX X     XXXXX XXXXXX, XXXXXXXX 00000    616/784-6100
       A Subsidiary of Park Electrochemical Corporation


                                             Xxxxxx X. XxXxxxx
                                                     President


October 17, 1996




Xx. Xxxxxx X. Xxxxxxx
Xxxx Xxxxxxx Sales and Associates
00 Xxxxx Xxxx Xxxxxx XX
X.X. Xxx 000
Xxxxxxxx Xxxx, Xxxxxxxx  00000-0000

Dear Phil:

This letter serves as an amendment to our original lease of October 1, 1991. 
Zin-Plas Corporation, is granted a one year extension commencing on January
1, 1997.  The rate shall bear a 7% increase and reflect a monthly rental
rate of $6635.00 per month.

All other terms and conditions of that lease shall remain in place.



                                                            
Xxxxxx X. XxXxxxx                  Witness
Zin-Plas Corporation


                                                            
                                   Witness





                                                            
Xxxxxx X. Xxxxxxx                  Witness
DBA Xxxxxxx Development


                                                            
                                   Witness



[Exh1010a]