lose about 76% and about 60% of their storage modulus over the same temperature range. In contrast, Examples 1-3 not only have higher storage moduli at equivalent temperature (compared to Comparative Samples A-C, respectively), but also exhibit much less storage modulus loss at 175°Cand 200°C.Example 1 loses only about 17% of its 160°Cstorage modulus when heated to 200°C; Examples 2 and 3 demonstrate even smaller losses. These results imply improved performance and stability when articles made using the elastomers of the invention in high-temperature applications. Lap shear testing is performed using Example 1 and Comparative Sample A. 1" x 6" x 0.2" (2.64 x 16.24 x 0.51 cm) glass coupons are cleaned with acetone and air-dried. A glass coupon is marked 2.0 inches (6.08 cm) from the end. The marked area is coating with freshly mixed reaction mixture (Ex. 1 or Comp. Sample A), together with 10 mil (0.264 mm) glass spacer beads. A second glass coupon is applied over the reaction mixture and secured with a metal clip. Edges are cleaned. Samples are allowed to cure at room temperature for one hour. The dip is removed, the samples are placed flat in a 60°Coven for 2 hours and are then held at ambient room temperature conditions for 7 days. Samples are tested according to ASTM 1002-01. The lap shear strength of Example 1 is 101 psi (696 kPa), whereas that of Comp. Sample A is only 64.5 psi (446 kPa) Examples 5-7 and Comparative Samples E and F are made in the same general manner as Examples 1-4 and A-D, respectively. In each of Examples 5-7, the reaction mixture contains less than 20 ppm of metals and no amine compounds except for the alkoxylated Mannich base product. Physical property testing is performed as described with respect to the earlier examples. Results are as indicated in Tables 5 and 6. Examples 5-7 and Comparative Samples E and F