

<PAGE>
                                  GEORGESON 
                                & COMPANY INC. 
                                -------------- 

                      

                           OFFER TO PURCHASE FOR CASH
                    
                     ALL OUTSTANDING SHARES OF COMMON STOCK

                                       OF
                             
                               AMDURA CORPORATION

                                       AT
                          
                              $2.30 NET PER SHARE

                                       BY
                             
                              ADU ACQUISITION INC.
                   
                     AN INDIRECT WHOLLY OWNED SUBSIDIARY OF
                                   
                                    FKI PLC



=============================================================================
                 THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE 
                  AT 12:00 MIDNIGHT, NEW YORK CITY TIME, ON 
           WEDNESDAY APRIL 19, 1995, UNLESS THE OFFER IS EXTENDED. 
=============================================================================

To Our Clients: 

   Enclosed for your consideration are an Offer to Purchase, dated March 22, 
1995 (the "Offer to Purchase"), and a related Letter of Transmittal (which 
together constitute the "Offer") in connection with the offer by ADU 
Acquisition Inc., a Delaware corporation ("Purchaser") and an indirect wholly 
owned subsidiary of FKI plc, a company organized under the laws of England 
("Parent"), to purchase all outstanding shares of common stock, par value 
$.01 per share (the "Shares"), of the Amdura Corporation, a Delaware 
corporation (the "Company"), at a price of $2.30 per Share, net to the seller 
in cash without interest, upon the terms and subject to the conditions set 
forth in the Offer. 

   We are (or our nominee is) the holder of record of Shares held by us for 
your account. A TENDER OF SUCH SHARES CAN BE MADE ONLY BY US AS THE HOLDER OF 
RECORD AND PURSUANT TO YOUR INSTRUCTIONS. THE LETTER OF TRANSMITTAL IS 
FURNISHED TO YOU FOR YOUR INFORMATION ONLY AND CANNOT BE USED BY YOU TO 
TENDER SHARES HELD BY US FOR YOUR ACCOUNT. 

   We request instructions as to whether you wish to have us tender on your 
behalf any or all of the Shares held by us for your account, upon the terms 
and subject to the conditions set forth in the Offer. 

   Your attention is invited to the following: 

       1. The tender price is $2.30 per Share, net to the seller in cash 
   without interest. 

       2. The Offer is being made for all outstanding Shares. 

       3. The Board of Directors of the Company unanimously has determined 
   that each of the Offer and the Merger (as defined in the Offer to 
   Purchase) is fair to, and in the best interests of, the stockholders of 
   the Company, and recommends that stockholders accept the Offer and tender 
   their Shares pursuant to the Offer. 

<PAGE>
       4. The Offer and withdrawal rights will expire at 12:00 Midnight, New 
   York City time, on Wednesday, April 19, 1995, unless the offer is 
   extended. 

       5. The Offer is conditioned upon, among other things, there being 
   validly tendered and not withdrawn prior to the expiration of the Offer at 
   least a majority of the then outstanding shares on a fully diluted basis. 
   The Offer is also conditioned upon, among other things, the expiration or 
   termination of applicable antitrust waiting periods. 

       6. Tendering stockholders will not be obligated to pay brokerage fees 
   or commissions or, except as otherwise provided in Instruction 6 of the 
   Letter of Transmittal, stock transfer taxes with respect to the purchase 
   of Shares by Purchaser pursuant to the Offer. 

   If you wish to have us tender any or all of your Shares, please so 
instruct us by completing, executing and returning to us the instruction form 
contained in this letter. An envelope in which to return your instructions to 
us is enclosed. If you authorize the tender of your Shares, all such Shares 
will be tendered unless otherwise specified in your instructions. YOUR 
INSTRUCTIONS SHOULD BE FORWARDED TO US IN AMPLE TIME TO PERMIT US TO SUBMIT A 
TENDER ON YOUR BEHALF PRIOR TO THE EXPIRATION OF THE OFFER. 

   The Offer is made solely by the Offer to Purchase and the related Letter 
of Transmittal and is being made to all holders of Shares. Purchaser is not 
aware of any state where the making of the Offer is prohibited by 
administrative or judicial action pursuant to any valid state statute. If 
Purchaser becomes aware of any valid state statute prohibiting the making of 
the Offer or the acceptance of Shares pursuant thereto, Purchaser will make a 
good faith effort to comply with any such state statute. If, after such good 
faith effort, Purchaser cannot comply with such state statute, the Offer will 
not be made to (nor will tenders be accepted from or on behalf of) the 
holders of Shares in such state. 

                                      
<PAGE>
          INSTRUCTIONS WITH RESPECT TO THE OFFER TO PURCHASE FOR CASH
            
                     ALL OUTSTANDING SHARES OF COMMON STOCK
         
                                       OF
                             
                               AMDURA CORPORATION

                                       BY

                              ADU ACQUISITION INC.


   The undersigned acknowledge(s) receipt of your letter and the enclosed 
Offer to Purchase, dated March 22, 1995, and the related Letter of 
Transmittal (which together constitute the "Offer"), in connection with the 
offer by ADU Acquisition Inc., a Delaware corporation and an indirect wholly 
owned subsidiary of FKI plc, a company organized under the laws of England, 
to purchase all outstanding shares of common stock, par value $.0l per share 
(the "Shares"), of Amdura Corporation, a Delaware corporation. 

   This will instruct you to tender the number of Shares indicated below (or, 
if no number is indicated below, all Shares) that are held by you for the 
account of the undersigned, upon the terms and subject to the conditions set 
forth in the Offer. 

Dated: --------------------------, 1995 

Number of Shares to be Tendered: 

- ------------------------ Shares* 

                                                       SIGN HERE 

                                             -------------------------------- 

                                             -------------------------------- 
                                                    Signature(s) 

                                             -------------------------------- 

                                             -------------------------------- 
                                               Please type or print name(s) 

                                             -------------------------------- 

                                             -------------------------------- 
                                               Please type or print address 

                                             --------------------------------- 
                                              Area Code and Telephone Number 

                                             --------------------------------- 
                                                 Taxpayer Identification or 
                                                   Social Security Number 

- ------ 
* Unless otherwise indicated, it will be assumed that all Shares held by us 
  for your account are to be tendered. 

                                      



