SIMSON B-component SMP or also referred to as "Booster" is a  paste   like   compound   which  is  used  as  an  accelerator  for  the  curing  process of SMP products (SMP = Silyl Modified Polymer).
Applications:A  small  amount  of  the  Simson  B-component  SMP  (1  part  B-component on 40 parts of SMP) significantly speeds up the  curing  time  and  the  strength  buildup  of  SMP  based  products  from  Bostik.  The  strength  buildup  in  time  is  given    in    the    figure    overleaf.    Alternatively,    the    B-component  SMP  allows  for  large  overlaps  and  seams, which  will  not  fully  cure  with  a  1-component  product  because  moisture  is  not  able  to  diffuse,  to  fully  cure  independently from humidity into the larger overlaps.
Together  with  the  standard  SMP  product,  the Simson  B-component  SMP  is  extruded  with  a  dedicated  applicator, the  Dual  SMP  400P.  The  two  components  are  mixed  together   by   means   of   a   static   mixer   shortly   before extrusion.  There  are  two  static  mixers  available:  Static  Mixer 8 for Simson products ISR 70-08 AP/70-05 AP and Static  Mixer  10 for  Simson  products  ISR  70-03/70-03 sskf, MSR-CA, MSR-CA sskf and MSR-FT.
Features:- One part paste on dispersion base (paste is curing).
 - Optimal mixing ratio: 1:40 (one part B-component SMPon 40 parts SMP product).
 - Development  of  the  Simson  Dual  SMP  400P  has  been  carried out by Bostik
 
Method of use:Simson  B-component SMP  has  to  be  mixed  well  into  the  SMP  based  adhesive  with  a  static  mixer.  The  mixing  ratioof   2-component   adhesives   has   to   be   controlled   with   great   accuracy.   The   SMP   (A-component)   adhesive   areavailable in packaging of 400 ml for the Dual SMP 400P® gun. Consult Bostik for additional information.
Note: Simson   B-component   SMP   cures   by   itself   (by   release  of  moisture)  if  packaging  is  opened  and  exposed  to dry air.