RELEASE OF ALL CLAIMS

FOR AND IN CONSIDERATION of the issuance to MAYNARD MOE, an individual, by Covol
Technologies,   Inc.,  ("Covol"),  (formerly  Environmental  Technologies  Group
International,   formerly  Enviro-Fuels,   Inc.),  of  30,000  shares  of  Covol
restricted common stock, the undersigned,  MAYNARD MOE, and his successors,  and
any other party in privity with the undersigned, do

HEREBY RELEASE AND FOREVER DISCHARGE Covol and their agents, employees,
employers,  principals,  partners,  and all others in privity with said Releases
(agreeing  parties)  of and from any and all  claims,  demands,  rights,  liens,
damages,  injuries,  losses,  contracts,  covenants,  suits,  causes of  action,
expenses,  judgments, orders and liabilities of any kind and nature, whether now
known or unknown, suspected or unsuspected,  foreseen or unforeseen, and whether
or not concealed and hidden,  which may have existed or may not have existed, or
which can, may or shall  hereafter  exist or which have accrued or may hereafter
accrue, on account of, or in any way relating to the services, purchases, sales,
loans and all other  transactions  between the undersigned  (including any party
related to or in  privity  with the  undersigned)  and Covol  (including  any of
Covol's predecessors).

The  undersigned  does  hereby  state  that this is a full and final  Release in
accord with its terms,  applying to all unknown,  unanticipated  and unsuspected
injuries,  damages  claims and expenses as set forth  above,  arising out of the
above incidents, as well as to those now known or disclosed.

It is understood and agreed, and the undersigned does hereby state that reliance
is placed wholly upon his and his attorney's  judgment,  belief and knowledge as
to the nature, cause, extent, and duration of any injuries and damages; and that
no statement  with regard thereto made by the Releases has in any way influenced
the making of this compromise settlement and the execution of this Release.

It is  understood  and agreed  that this offer  and/or  compromise  shall not be
deemed or  construed  as an  admission  of  liability  as to any of the agreeing
parties.

Having  read and  understood  the terms of this  Release of All  Claims,  and in
witness  whereof,  the  undersigned  has  hereunto set his hand this 13th day of
September, 1996.


                                /s/ Maynard Moe
                                   MAYNARD MOE

SUBSCRIBED AND SWORN TO before me this 13th day of September, 1996.

 
                                    /s/ Asael T. Sorensen 
                                        NOTARY PUBLIC
                                        Residing in: Utah County 

My Commission Expires: 2/09/00