APPROVED SOURCES

AIR-ENTRAINING ADMIXTURES

VINSOL RESIN BRAND NAME PRODUCER/DISTRIBUTOR LOCATION

Daravair - 1400                                       W.R. Grace & Company                                Boston, MA

Darex II AEA

Air Mix                                                    Euclid Chemical                                            Cleveland, OH

                                                               Distributed by Brett Admixtures                    Des Moines, IA

MB AE 90                                               BASF Corporation                                         Cleveland, OH

MB-VR Standard

Micro-Air

Polychem VR                                          General Resource Technology                     Eagen, MN

RVR-15                                                   RussTech, Inc.                                             Louisville, KY

Sika AER                                                 Sika Corporation                                           Marion, OH

                                                               Dist. by Contractors Steel Corp.                   Des Moines, IA

NON-VINSOL RESIN BRAND NAME PRODUCER/DISTRIBUTOR LOCATION

AEA-92                                                   Euclid Chemical Company                             Cleveland, OH

AEA-92S                                                 Distributed by Brett Admixtures

Airalon 3000                                           W.R. Grace & Company                                Boston, MA

Daravair 1000                                        

Daravair AT30

Daravair AT60

Terapave AEA

Catexol AE260 Axim Concrete Tech. Middlebranch, OH

Catexol AE360

Chryso Air 260                                        Chryso, Inc.                                                  Rockwall, TX

ConAir                                                    Premiere Concrete Admixtures                     Pioneer, OH

ConAir 260

Everair Plus                                            BASF Corporation                                         Cleveland, OH

NON-VINSOL RESIN BRAND NAME PRODUCER/DISTRIBUTOR LOCATION

(Continued)

Polychem AE                                          General Resource Technology                     Eagen, MN

Polychem SA                                         

Polychem SA-50

RSA-10                                                   RussTech, Inc.                                             Louisville, KY

Sika AEA-14                                            Sika Corporation                                           Marion, OH

Sika AEA-15                                            Dist. by Contractors Steel Corp.                   Des Moines, IA

Sika Air

Sika Air-260

Sika Air-360

Stable Air                                                Cellular Concrete Technologies, LLC           Irvine, CA

Super Air Plus*                                       Fritz-Pak Corporation                                    Dallas, TX

Air Plus*

Miracon 2315                                          Miracon Technologies                                  Richardson, TX

*Dry powdered admixture, prepackaged in water-soluble bag.