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Ecorr® RNR
Reclaim Natural Rubber
Ecorr® RNR40 B11Ecorr® RNR30 B01Ecorr® RNR30 B91Ecorr® RNR20 B52Ecorr® RNR20 B66
Ecorr®
The explanation of the brand name and parts of the mission
together explain the reasons why reclaim is used.
Eco - Ecological
Rubber Resources strives to recycle rubber waste in order
to preserve the environment and natural resources for
future generations. Reclaim replaces virgin material in
order to take some of the pressure off our environment.
Eco - Economical
Strong costs benefits can be obtained with Ecorr®RNR
grades. Even with the current low polymer prices. As the
below recipe comparison demonstrates, there are price as
well as volume benefits.
rr - regular rubber
Waste Rubber is reversed into regular rubber, which has
regained its viscosity, chemical and mechanical properties.
Savings with Ecorr®RNR in Carcass compound
NREcorr®RNREuro/USD exchange rate
Carcass compoundNatural rubberPeptiserBREcorr®RNRCarbon blackLow aromatic oilStearic acidTMQZnOMBTSPVIZwavel
Total phr and USDCosts in USD per kg batchSavings in USD per kg batch
Tire production per dayKg batch per day (at an average weight of 5 kg per carcass)Saving per day (2x3)Annually (350 days x 4)
1.4 USD 0.72 USD 1.1
B - Phr 70 1 20 20 45 6 2 3 5 1.0 0.1 3.2
176.25
PricesUSD p/kg
1.40 12.10 2.75 0.72 1.19 1.39 1.54 3.47 2.75 5.12 3.03 3.91
Recipe - A 112.00 12.10 55.00 0.00 53.46 8.32 3.08 10.40 13.75 5.12 0.30 12.30
285.82 1.72
Recipe - B 98.00 12.10 55.00 14.30 53.46 8.32 3.08 10.40 13.75 5.12 0.30 12.30
286.12 1.62 -0.10
Prices 1.27 Euros 0.65 Euros
A - Phr80 120 045 6 2 3 5 1.0 0.1 3.2
166.25
2,000100,000
-$9,584 -$3,354,467
www.rubber-resources.com
Main advantageThe activities of the current company started 59 years ago
at a tyre producer. These roots still exist; nowadays the tyre
industry is the most important application for the Ecorr®
grades. The main advantage is shown below, costs savings
in a tyre application.
Cost savings per kg price and per litre. Calculated with
prices of the first quarter of 2015 and substituted up to 20%
in a Truck-Tread compound.
● Lower power consumption resulting from shorter
mixing cycles.
● Lower calendering, mixing and extrusion temperature.
● Improved penetration of fabric and cord.
● Lower swelling and shrinkage during extrusion and
calendering.
● Increased track.
● Improved reversion and ageing performance of natural
rubber compounds (ozone, UV).
● Lower raw material costs.
Other advantages
Cost savings
10
12
14
16
00
2
4
6
8
5 10 15 20
% s
avin
gs
% polymer substitution
Calculated with:
NR 1.33 euro/kg
RNR 0.60 euro/kg
kilo price liter price * General market prices Q1 - 2015
The grades and their propertiesThe grades are REACH compliant and fully compliant with the European legislation.
Acetone-extract
Ashes
Carbon Black
Polymer content
Density
Hardness
Tensile strength
Elongation at break
Mooney viscosity
Heat loss, 100 °C
Physical appearance
Curing
TYRE INDUSTRY OTHER APPLICATIONS
13 ± 2
5 ± 2
26 ± 2
56 ± 3
1110 ± 15
57 ± 3
> 8
> 250
50 - 70
< 1
%
%
%
%
kg/m
Shore A
MPa
%
ML(1+4)@100°C
%
t 90, 150°C
Reclaim
ZnO
Stearic acid
Sulphur
MBT
DPG
ASTM D297-18
ASTM D297-18
ASTM E 1131
ASTM E 1131
ASTM D297-15
ASTM D2240
ASTM D412
ASTM D412
ASTM D1646
ASTM D1278
100 phr
5 phr
2 phr
3 phr
0.5 phr
0.2 phr
13 ± 2
5 ± 2
28 ± 2
53 ± 3
1130 ± 20
54 ± 3
> 6
240 ± 40
40 - 65
< 1
15 ± 2
8 ± 2
26 ± 2
50 ± 3
1140 ± 20
53 ± 5
6 ± 1
> 200
35 - 65
< 1
16 ± 3
13 ± 3
24 ± 3
46 ± 4
1190 ± 20
50 ± 5
5 ± 1
> 200
35 - 65
< 1
10 ± 4
18 ± 4
26 ± 4
46 ± 4
< 1350
57 ± 5
5 ± 1
> 200
35 - 65
< 1
RNR40B11
RNR30B01
RNR30B91
RNR20B52
RNR20B66
Packaging Pallets
Net weight
Net weight
Pallets
Net weight
Net weight
[cm]
[kg]
[pounds]
[cm]
[kg]
[pounds]
120x100x135
1250
2755
120x100x110
1000
2204
Black slabs of 10 kg. (40x60x4 cm). Each slab is packed in a low melting foil.
Key Grades
www.rubber-resources.com
The processThe NR-reclaim grades are mechani-
cally and thermally devulcanised,
mainly out of rubber Truck Tread
peelings without adding any devul-
canising agents.
Rubber Resources uses a Banbury
mixer in the process; this enables
them to produce a customer-based
master batch by adding other raw
materials.
The most common applications for each material are indicated in the chart
below. It is very important to distinguish if reclaimed material is to be used as
a master batch or as part of a total compound. For each application it is possible
and / or necessary to optimise the total compound recipe.
Applications overview
Approved raw material
Cutting
Separation of metals
Granulating (3.5 mm)
Separation of contaminants
Grinding
Separation of metals
Thermal step
Mechanical step
Straining
Cooling
Packaging
Storage
Powder
M = Masterbatch P = Part of a virgin compound
Application:
Passenger and truck tyres:
Treads
Sidewalls
Carcass
Bead
Apex
Bicycle tyres
Solid tyres
Automotive moulded goods
Mechanical moulded goods
Mats (flooring, automotive)
Conveyer belts
Hoses
Shoes
RNR40
B11
P
P
P
P
P
P
M
P
P
M/P
RNR30
B01
P
P
P
P
P
M/P
M/P
M
P
P
M/P
RNR30
B91
P
P
M/P
M/P
M/P
M
P
P
M/P
RNR20
B52
P
M/P
M/P
M/P
M
P
M/P
RNR20
B66
P
M/P
M/P
M/P
M
M/P
The Banbury Mixer
Using reclaim in a tread compoundEach virgin compound responds differently when the reclaim is substituted for a portion of the virgin rubber, affecting
physical and processing properties such as vulcanisation behaviour. Over the years, Rubber Resources has developed
different techniques leading to full control of these affects. A brief example using a tyre tread compound is provided in
the chart mentioned below.
Rubber Resources B.V.Schoenerweg 36 - 6222 NX Maastricht - P.O. Box 437 - 6200 AK Maastricht - The Netherlands
Phone: +31 (0)43 329 04 44 - Fax: +31 (0)43 329 03 03 - E-mail: info@rubber-resources.com - Website: www.rubber-resources.com
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means without the prior written permission of Rubber Resources.
No responsibility is assumed by Rubber Resources for any injury and / or damage to persons or property as a matter of products liability, negligence or otherwise, or from any use or operation of any methods, products, instructions or ideas contained in the material herein.
Example:
Using reclaim in a tread compound
In the first column, the recipe and
pro-perties of a tyre tread compound are
indicated. In the second column, the
effect of substituting 10 parts of the SBR
rubber for 20 parts of Ecorr® RNR30B01
reclaim (which contains ± 50% RHC) is
indicated. In the last two columns,
possible optimisation steps and their
effect on the compound properties are
summarized.
Increase in Mooney viscosityThe phenomenon of the hardening of
natural rubber during storage is well
known throughout the rubber industry.
Due to the high proportion of natural
rubber in tyre tread reclaim, the harde-
ning behaviour of reclaim during storage
is similar to that of natural rubber. The
rate of increase depends on storage time
and temperature. It can be calculated
with the following empirical equation:
M t = M 0 * (1 + a * t 0.55)
M t = Mooney after t days of storage
M 0 = Mooney at the day of production
t = Storage time in days
a = 0.04 for T = 23°C
= 0.15 for T = 50°C
SBR 1500BR 1220B01ISAF N234Low PCA oilStearic acidStruktol 40 MSTMQIPPDAntilux 654ZnO
TBBSSU-109PVI
Mooney ML(1+4)@100°C
Rheo @ 160 °CMLMHts2t50t90
Modulus (MPa)100%200%300%400%500%
Tensile strength (MPa)Elongation at break (%)
Hardness (° Shore A)Density (g/cm3)Din Abrasion (mm3)Tear Delft [N] // [N]
VirginCompound
80 20 - 75 25 1 3 2 2 1.5 5
1.5 2.4 -
71
11 68 4’39’’ 7’22’’ 10’20’’
1.7 2.9 6.9 8.6 11.7
17.4 577
71 1.17 81
62 57
+20 phr B01
70 20 20 75 25 1 3 2 2
1.5 5
1.5 2.4 -
75
14 69
3’51’’ 6’02’’ 8’40’’
2.3 5.2 9.3 13.3
14.7456
74 1.18
106
60 56
+PVI
7020207525 1 3 2 2
1.5 5
1.5 2.5 0,5
73
1369
5’26’’ 8’57’’ 11’25’’
2.1 4.9 9.0 12.9
14.8 456
74 1.18 82
57 56
-PVI-15 phr CB-10 phr oil
7020206015 1 3 2 2
1.5 5
1.5 2.4 -
71
1271
4’54’’ 8’21’’ 10’53’’
2.0 4.6 8.4 12.4
15.5 480
75 1.16 75
65 59
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