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Product Comparison

Plastic and Ram Refractory Comparisons

Aug 18, 2021, 14:36 PM by Trevor Hileman

Resco Products, Inc. furnishes both plastics and ram mixes. All of the products listed here are supplied pre-mixed, ready to use. They are supplied in cartons and/or pails.

Installing Plastic Refractories

  • Use of a pneumatic rammer with a metal, the convex-shaped head is recommended.                                                         
  • Use rigid forms for arches. Proper anchoring and support are essential.                                                                                     
  • When patching, clean the surface thoroughly, and for best results, apply a coating of compatible high temperature bonding mortar before installing the plastic.                                                                                                               
  • Trim surface while plastic is still soft. Do not smooth the surface-a rough surface allows moisture to escape.   
           
  • Moisture escape holes are recommended for the hot face. Use a 1/8” diameter rod with a pointed end. 
  • Insert the rod approximately two-thirds of the thickness of the plastic on not more than 6” centers
  • To control cracking in installations with large surface areas such as walls or roof sections, construction joints should be formed by scoring the surface of the plastic. Score to a depth of 1.5”. Score lines should be on 36” centers, vertically and horizontally, between anchors
  • Drying and heat up should be started as soon as possible after installation is completed. 

Suggestions for Installing Ramming Mixes

  • Use pneumatic rammers with wedge-shaped steel heads. Never use rubber heads
  • Always use rigid forms, preferably steel. 
  • Do not ram over loose, unconsolidated sub bottoms
  • Material should be placed in approximately 2” layers of loose material and compacted. A steady flow of material is desired to prevent laminations. Ramming should be continuous to prevent material dry out between layers.
   
Product 		  
% Alumina Category 		  ºF  
Material Required Per Ft3 		  %  % %   %  %  %  %  %  %  %  
1500ºF cc Erosion 		  
1500ºF psi CCS 		  
1500ºF psi MOR 		  
1500ºF % PLC 
  Service Temp  AL2O3  SiO3  SiC  Fe2O3  CaO  MgO  TiO2  P2O5  Cr2O3  Alk 
Plastics 
  Rescoram A-45HC  45 3000  143  42.8  54.2     1.0 0.1 0.1 1.3     0.5     130 150 0.0
 Rescoram A-45  45 3100  148  43.6  54.2    0.8  0.1  0.1  0.7      0.5      75 to 250  0.8 to 1.2 
 Rescoram A-60  60 3100  159  55.6  40.7    1.3    0.1  1.9      0.4      200 to 400  -0.2 to 0.2 
 Rescoram A-80  80 3300  165  79.1  16.8    1.5      2.4      0.2         
Rescoram A-90  90 3300  174  90.9  7.0    0.2  0.1  0.1  0.2      0.2         
Patching / Ram Mixes

  ST-001 Patching Mix  Ram     62.6  32.8    1.4  0.4  0.4  0.8      1.6         
 Plastics  Rescoram 50  50 3000  151  48.0  46.6    0.9      1.0  3.2    0.3      200 to 500  0.2 to 0.6 
 Rescoram 60  60 3000  170  61.3  29.8    1.4  0.1    2.2  4.6    0.6  <10.0  3000 to 5000  800 to 1200  0.2 to 0.3 
 Rescoram 70 Blue  70 3100  165  72.0  20.6    1.0  0.1  0.2  1.8  3.9    0.4  <13.0    1325  0.02 
 Rescoram 70M  70 3100  165  72.0  20.6    1.0  0.1  0.2  1.8  3.9    0.4  <13.0       
 Rescoram 85S  85 33  177  83.1  9.4    1.2  0.1  0.3  2.2  3.2    0.5  <10.0    1700  -0.03 
 Rescoram 85  85 3000  182  84.8  7.4    1.2  0.1  0.3  2.1  3.6    0.5  <10.0    1700  -0.03 
 Rescoram 90F  90 9100  183  91.3  4.5    0.2  0.2  0.2  0.1  3.5    0.2      1800  0.2 
 Rescoram 90  90 3100  192  93.2  2.6    0.2  0.1  0.1    3.5    0.3  <5.0    2400  -0.02 
 Ref Ram 850LS  80 3200  176  81.5  11.3    0.8      2.0  1.6           1600 -0.2 
 Ref Ram 850 HS-FG  80 3250  174  80.5  11.4    0.8      1.9  0.6           1500 0.1 
 Ref Ram 870 FG-M  90 3350  178  89.5  8.0                       2400 0.2 
 Rescoram 7CR  Alumina-Chorme  3100 173  78.2  7.5    1.2  0.1  0.3  2.2  3.1  7.0  0.3  <10.0    1300  -0.3 
 Rescoram 10CR  Alumina-Chorme  3100 203  83.8  2.6    0.1  0.1  0.2    3.0  10.5  0.2  <10.0    2000  -0.2 
 Rescoram 20CR  Alumina-Chorme  3300 207  70.7  4.3    0.2    0.3    3.1  21.1  0.2         
 Rescoram 70SC  SiC  2900 165  21.4  5.1  69.5  0.2  0.1  0.2    3.4    0.2  <12..0  3500 to 4200  1500 to 2000  -0.1 to -0.3 
 Patching / Ram Mixes Corpatch 50 MS  Ram  2900 140-150  49.7  41.9    1.3  0.3  0.5  1.3  3.9    1.1         
 Corpatch 80  Ram  3100 155-160  73.8  16.2    1.0  0.1  0.1  1.3  7.2    0.3  <8.0    2600 to 3500  -1.0 to 0.2
 Corpatch 80 MS  Ram  3100 155-160  73.8  16.2    1.0  0.1  0.1  1.3  7.2    0.3  <8.0    2600 to 3500  -1.0 to 0.2 
 Corline  Special  3300 175-185  87.4  5.3    0.3  0.1  0.1  0.2  6.3    0.3  <7.0    3000 to 4000  -0.2 to -0.8 
 Resco LR  Ram  3300 182  83.5  9.8    1.3  0.4  0.4  2.3  2.1    0.6    3600 to 5100  700 to 1000  -0.2 to 0.2 
 Ref patch 850 FG  Ram  3200 176  92.3  10.9            3.9             
 Ref patch 850 WF  Ram  3000 176  80.1  11.6    0.8        3.9             
 Ref Patch X-13  Ram  3200 185  85.7  8.2             3.7            

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